21000519348

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:838

約数の個数: 192

約数和(自身を含む): 55190446080

約数和(自身を除く): 34189926732

約数列:

[1, 2, 3, 4, 6, 12, 19, 31, 37, 38, 57, 62, 74, 76, 93, 111, 114, 124, 131, 148, 186, 222, 228, 262, 372, 393, 444, 524, 589, 613, 703, 786, 1147, 1178, 1226, 1406, 1572, 1767, 1839, 2109, 2294, 2356, 2452, 2489, 2812, 3441, 3534, 3678, 4061, 4218, 4588, 4847, 4978, 6882, 7068, 7356, 7467, 8122, 8436, 9694, 9956, 11647, 12183, 13764, 14541, 14934, 16244, 19003, 19388, 21793, 22681, 23294, 24366, 29082, 29868, 34941, 38006, 43586, 45362, 46588, 48732, 57009, 58164, 65379, 68043, 69882, 76012, 77159, 80303, 87172, 90724, 92093, 114018, 130758, 136086, 139764, 150257, 154318, 160606, 184186, 228036, 231477, 240909, 261516, 272172, 276279, 300514, 308636, 321212, 361057, 368372, 430939, 450771, 462954, 481818, 552558, 601028, 703111, 722114, 861878, 901542, 925908, 963636, 1083171, 1105116, 1292817, 1406222, 1444228, 1525757, 1723756, 1803084, 2109333, 2166342, 2489393, 2585634, 2812444, 2854883, 2971211, 3051514, 4218666, 4332684, 4577271, 4978786, 5171268, 5709766, 5942422, 6103028, 7468179, 8437332, 8564649, 8913633, 9154542, 9957572, 11419532, 11884844, 13359109, 14936358, 17129298, 17827266, 18309084, 26718218, 29872716, 34258596, 35654532, 40077327, 47298467, 53436436, 56453009, 80154654, 92107541, 94596934, 112906018, 141895401, 160309308, 169359027, 184215082, 189193868, 225812036, 276322623, 283790802, 338718054, 368430164, 552645246, 567581604, 677436108, 1105290492, 1750043279, 3500086558, 5250129837, 7000173116, 10500259674, 21000519348]

約数ペア:

[(1, 21000519348), (2, 10500259674), (3, 7000173116), (4, 5250129837), (6, 3500086558), (12, 1750043279), (19, 1105290492), (31, 677436108), (37, 567581604), (38, 552645246), (57, 368430164), (62, 338718054), (74, 283790802), (76, 276322623), (93, 225812036), (111, 189193868), (114, 184215082), (124, 169359027), (131, 160309308), (148, 141895401), (186, 112906018), (222, 94596934), (228, 92107541), (262, 80154654), (372, 56453009), (393, 53436436), (444, 47298467), (524, 40077327), (589, 35654532), (613, 34258596), (703, 29872716), (786, 26718218), (1147, 18309084), (1178, 17827266), (1226, 17129298), (1406, 14936358), (1572, 13359109), (1767, 11884844), (1839, 11419532), (2109, 9957572), (2294, 9154542), (2356, 8913633), (2452, 8564649), (2489, 8437332), (2812, 7468179), (3441, 6103028), (3534, 5942422), (3678, 5709766), (4061, 5171268), (4218, 4978786), (4588, 4577271), (4847, 4332684), (4978, 4218666), (6882, 3051514), (7068, 2971211), (7356, 2854883), (7467, 2812444), (8122, 2585634), (8436, 2489393), (9694, 2166342), (9956, 2109333), (11647, 1803084), (12183, 1723756), (13764, 1525757), (14541, 1444228), (14934, 1406222), (16244, 1292817), (19003, 1105116), (19388, 1083171), (21793, 963636), (22681, 925908), (23294, 901542), (24366, 861878), (29082, 722114), (29868, 703111), (34941, 601028), (38006, 552558), (43586, 481818), (45362, 462954), (46588, 450771), (48732, 430939), (57009, 368372), (58164, 361057), (65379, 321212), (68043, 308636), (69882, 300514), (76012, 276279), (77159, 272172), (80303, 261516), (87172, 240909), (90724, 231477), (92093, 228036), (114018, 184186), (130758, 160606), (136086, 154318), (139764, 150257)]