20528090709

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{283}}^1\times {\mathrm{839}}^1$

素因数の和:1334

約数の個数: 64

約数和(自身を含む): 32978534400

約数和(自身を除く): 12450443691

約数列:

[1, 3, 7, 21, 23, 69, 161, 179, 283, 483, 537, 839, 849, 1253, 1981, 2517, 3759, 4117, 5873, 5943, 6509, 12351, 17619, 19297, 19527, 28819, 45563, 50657, 57891, 86457, 135079, 136689, 150181, 151971, 237437, 354599, 405237, 450543, 712311, 1051267, 1063797, 1165111, 1662059, 3153801, 3454163, 3495333, 4986177, 5461051, 8155777, 10362489, 16383153, 24179141, 24467331, 38227357, 42501223, 72537423, 114682071, 127503669, 297508561, 892525683, 977528129, 2932584387, 6842696903, 20528090709]

約数ペア:

[(1, 20528090709), (3, 6842696903), (7, 2932584387), (21, 977528129), (23, 892525683), (69, 297508561), (161, 127503669), (179, 114682071), (283, 72537423), (483, 42501223), (537, 38227357), (839, 24467331), (849, 24179141), (1253, 16383153), (1981, 10362489), (2517, 8155777), (3759, 5461051), (4117, 4986177), (5873, 3495333), (5943, 3454163), (6509, 3153801), (12351, 1662059), (17619, 1165111), (19297, 1063797), (19527, 1051267), (28819, 712311), (45563, 450543), (50657, 405237), (57891, 354599), (86457, 237437), (135079, 151971), (136689, 150181)]