217481796

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{123289}}^1$

素因数の和:123313

約数の個数: 54

約数和(自身を含む): 639505230

約数和(自身を除く): 422023434

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 123289, 246578, 369867, 493156, 739734, 863023, 1109601, 1479468, 1726046, 2219202, 2589069, 3452092, 4438404, 5178138, 6041161, 7767207, 10356276, 12082322, 15534414, 18123483, 24164644, 31068828, 36246966, 54370449, 72493932, 108740898, 217481796]

約数ペア:

[(1, 217481796), (2, 108740898), (3, 72493932), (4, 54370449), (6, 36246966), (7, 31068828), (9, 24164644), (12, 18123483), (14, 15534414), (18, 12082322), (21, 10356276), (28, 7767207), (36, 6041161), (42, 5178138), (49, 4438404), (63, 3452092), (84, 2589069), (98, 2219202), (126, 1726046), (147, 1479468), (196, 1109601), (252, 863023), (294, 739734), (441, 493156), (588, 369867), (882, 246578), (1764, 123289)]