21491105964

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{173053}}^1$

素因数の和:173270

約数の個数: 48

約数和(自身を含む): 51168606720

約数和(自身を除く): 29677500756

約数列:

[1, 2, 3, 4, 6, 12, 79, 131, 158, 237, 262, 316, 393, 474, 524, 786, 948, 1572, 10349, 20698, 31047, 41396, 62094, 124188, 173053, 346106, 519159, 692212, 1038318, 2076636, 13671187, 22669943, 27342374, 41013561, 45339886, 54684748, 68009829, 82027122, 90679772, 136019658, 164054244, 272039316, 1790925497, 3581850994, 5372776491, 7163701988, 10745552982, 21491105964]

約数ペア:

[(1, 21491105964), (2, 10745552982), (3, 7163701988), (4, 5372776491), (6, 3581850994), (12, 1790925497), (79, 272039316), (131, 164054244), (158, 136019658), (237, 90679772), (262, 82027122), (316, 68009829), (393, 54684748), (474, 45339886), (524, 41013561), (786, 27342374), (948, 22669943), (1572, 13671187), (10349, 2076636), (20698, 1038318), (31047, 692212), (41396, 519159), (62094, 346106), (124188, 173053)]