20729142

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 57139200

約数和(自身を除く): 36410058

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 31, 42, 54, 58, 61, 62, 63, 87, 93, 122, 126, 174, 183, 186, 189, 203, 217, 261, 279, 366, 378, 406, 427, 434, 522, 549, 558, 609, 651, 783, 837, 854, 899, 1098, 1218, 1281, 1302, 1566, 1647, 1674, 1769, 1798, 1827, 1891, 1953, 2562, 2697, 3294, 3538, 3654, 3782, 3843, 3906, 5307, 5394, 5481, 5673, 5859, 6293, 7686, 8091, 10614, 10962, 11346, 11529, 11718, 12383, 12586, 13237, 15921, 16182, 17019, 18879, 23058, 24273, 24766, 26474, 31842, 34038, 37149, 37758, 39711, 47763, 48546, 51057, 54839, 56637, 74298, 79422, 95526, 102114, 109678, 111447, 113274, 119133, 164517, 169911, 222894, 238266, 329034, 334341, 339822, 357399, 383873, 493551, 668682, 714798, 767746, 987102, 1151619, 1480653, 2303238, 2961306, 3454857, 6909714, 10364571, 20729142]

約数ペア:

[(1, 20729142), (2, 10364571), (3, 6909714), (6, 3454857), (7, 2961306), (9, 2303238), (14, 1480653), (18, 1151619), (21, 987102), (27, 767746), (29, 714798), (31, 668682), (42, 493551), (54, 383873), (58, 357399), (61, 339822), (62, 334341), (63, 329034), (87, 238266), (93, 222894), (122, 169911), (126, 164517), (174, 119133), (183, 113274), (186, 111447), (189, 109678), (203, 102114), (217, 95526), (261, 79422), (279, 74298), (366, 56637), (378, 54839), (406, 51057), (427, 48546), (434, 47763), (522, 39711), (549, 37758), (558, 37149), (609, 34038), (651, 31842), (783, 26474), (837, 24766), (854, 24273), (899, 23058), (1098, 18879), (1218, 17019), (1281, 16182), (1302, 15921), (1566, 13237), (1647, 12586), (1674, 12383), (1769, 11718), (1798, 11529), (1827, 11346), (1891, 10962), (1953, 10614), (2562, 8091), (2697, 7686), (3294, 6293), (3538, 5859), (3654, 5673), (3782, 5481), (3843, 5394), (3906, 5307)]