21979620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:163

約数の個数: 192

約数和(自身を含む): 76769280

約数和(自身を除く): 54789660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 31, 36, 39, 45, 52, 54, 60, 62, 65, 78, 90, 93, 101, 108, 117, 124, 130, 135, 155, 156, 180, 186, 195, 202, 234, 260, 270, 279, 303, 310, 351, 372, 390, 403, 404, 465, 468, 505, 540, 558, 585, 606, 620, 702, 780, 806, 837, 909, 930, 1010, 1116, 1170, 1209, 1212, 1313, 1395, 1404, 1515, 1612, 1674, 1755, 1818, 1860, 2015, 2020, 2340, 2418, 2626, 2727, 2790, 3030, 3131, 3348, 3510, 3627, 3636, 3939, 4030, 4185, 4545, 4836, 5252, 5454, 5580, 6045, 6060, 6262, 6565, 7020, 7254, 7878, 8060, 8370, 9090, 9393, 10881, 10908, 11817, 12090, 12524, 13130, 13635, 14508, 15655, 15756, 16740, 18135, 18180, 18786, 19695, 21762, 23634, 24180, 26260, 27270, 28179, 31310, 35451, 36270, 37572, 39390, 40703, 43524, 46965, 47268, 54405, 54540, 56358, 59085, 62620, 70902, 72540, 78780, 81406, 84537, 93930, 108810, 112716, 118170, 122109, 140895, 141804, 162812, 169074, 177255, 187860, 203515, 217620, 236340, 244218, 281790, 338148, 354510, 366327, 407030, 422685, 488436, 563580, 610545, 709020, 732654, 814060, 845370, 1098981, 1221090, 1465308, 1690740, 1831635, 2197962, 2442180, 3663270, 4395924, 5494905, 7326540, 10989810, 21979620]

約数ペア:

[(1, 21979620), (2, 10989810), (3, 7326540), (4, 5494905), (5, 4395924), (6, 3663270), (9, 2442180), (10, 2197962), (12, 1831635), (13, 1690740), (15, 1465308), (18, 1221090), (20, 1098981), (26, 845370), (27, 814060), (30, 732654), (31, 709020), (36, 610545), (39, 563580), (45, 488436), (52, 422685), (54, 407030), (60, 366327), (62, 354510), (65, 338148), (78, 281790), (90, 244218), (93, 236340), (101, 217620), (108, 203515), (117, 187860), (124, 177255), (130, 169074), (135, 162812), (155, 141804), (156, 140895), (180, 122109), (186, 118170), (195, 112716), (202, 108810), (234, 93930), (260, 84537), (270, 81406), (279, 78780), (303, 72540), (310, 70902), (351, 62620), (372, 59085), (390, 56358), (403, 54540), (404, 54405), (465, 47268), (468, 46965), (505, 43524), (540, 40703), (558, 39390), (585, 37572), (606, 36270), (620, 35451), (702, 31310), (780, 28179), (806, 27270), (837, 26260), (909, 24180), (930, 23634), (1010, 21762), (1116, 19695), (1170, 18786), (1209, 18180), (1212, 18135), (1313, 16740), (1395, 15756), (1404, 15655), (1515, 14508), (1612, 13635), (1674, 13130), (1755, 12524), (1818, 12090), (1860, 11817), (2015, 10908), (2020, 10881), (2340, 9393), (2418, 9090), (2626, 8370), (2727, 8060), (2790, 7878), (3030, 7254), (3131, 7020), (3348, 6565), (3510, 6262), (3627, 6060), (3636, 6045), (3939, 5580), (4030, 5454), (4185, 5252), (4545, 4836)]