21551004

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^2\times {\mathrm{271}}^1$

素因数の和:375

約数の個数: 54

約数和(自身を含む): 55865264

約数和(自身を除く): 34314260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 271, 282, 423, 542, 564, 813, 846, 1084, 1626, 1692, 2209, 2439, 3252, 4418, 4878, 6627, 8836, 9756, 12737, 13254, 19881, 25474, 26508, 38211, 39762, 50948, 76422, 79524, 114633, 152844, 229266, 458532, 598639, 1197278, 1795917, 2394556, 3591834, 5387751, 7183668, 10775502, 21551004]

約数ペア:

[(1, 21551004), (2, 10775502), (3, 7183668), (4, 5387751), (6, 3591834), (9, 2394556), (12, 1795917), (18, 1197278), (36, 598639), (47, 458532), (94, 229266), (141, 152844), (188, 114633), (271, 79524), (282, 76422), (423, 50948), (542, 39762), (564, 38211), (813, 26508), (846, 25474), (1084, 19881), (1626, 13254), (1692, 12737), (2209, 9756), (2439, 8836), (3252, 6627), (4418, 4878)]