21459564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 66533376

約数和(自身を除く): 45073812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 41, 42, 62, 63, 67, 82, 84, 93, 123, 124, 126, 134, 164, 186, 201, 217, 246, 252, 268, 279, 287, 369, 372, 402, 434, 469, 492, 558, 574, 603, 651, 738, 804, 861, 868, 938, 1116, 1148, 1206, 1271, 1302, 1407, 1476, 1722, 1876, 1953, 2077, 2412, 2542, 2583, 2604, 2747, 2814, 3444, 3813, 3906, 4154, 4221, 5084, 5166, 5494, 5628, 6231, 7626, 7812, 8241, 8308, 8442, 8897, 10332, 10988, 11439, 12462, 14539, 15252, 16482, 16884, 17794, 18693, 19229, 22878, 24723, 24924, 26691, 29078, 32964, 35588, 37386, 38458, 43617, 45756, 49446, 53382, 57687, 58156, 74772, 76916, 80073, 85157, 87234, 98892, 106764, 115374, 130851, 160146, 170314, 173061, 174468, 230748, 255471, 261702, 320292, 340628, 346122, 510942, 523404, 596099, 692244, 766413, 1021884, 1192198, 1532826, 1788297, 2384396, 3065652, 3576594, 5364891, 7153188, 10729782, 21459564]

約数ペア:

[(1, 21459564), (2, 10729782), (3, 7153188), (4, 5364891), (6, 3576594), (7, 3065652), (9, 2384396), (12, 1788297), (14, 1532826), (18, 1192198), (21, 1021884), (28, 766413), (31, 692244), (36, 596099), (41, 523404), (42, 510942), (62, 346122), (63, 340628), (67, 320292), (82, 261702), (84, 255471), (93, 230748), (123, 174468), (124, 173061), (126, 170314), (134, 160146), (164, 130851), (186, 115374), (201, 106764), (217, 98892), (246, 87234), (252, 85157), (268, 80073), (279, 76916), (287, 74772), (369, 58156), (372, 57687), (402, 53382), (434, 49446), (469, 45756), (492, 43617), (558, 38458), (574, 37386), (603, 35588), (651, 32964), (738, 29078), (804, 26691), (861, 24924), (868, 24723), (938, 22878), (1116, 19229), (1148, 18693), (1206, 17794), (1271, 16884), (1302, 16482), (1407, 15252), (1476, 14539), (1722, 12462), (1876, 11439), (1953, 10988), (2077, 10332), (2412, 8897), (2542, 8442), (2583, 8308), (2604, 8241), (2747, 7812), (2814, 7626), (3444, 6231), (3813, 5628), (3906, 5494), (4154, 5166), (4221, 5084)]