219561881

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 289118592

約数和(自身を除く): 69556711

約数列:

[1, 7, 11, 53, 67, 73, 77, 121, 371, 469, 511, 583, 737, 803, 847, 3551, 3869, 4081, 4891, 5159, 5621, 6413, 8107, 8833, 24857, 27083, 34237, 39061, 42559, 44891, 53801, 56749, 61831, 259223, 273427, 297913, 376607, 429671, 468149, 591811, 1814561, 2851453, 3007697, 3277043, 4142677, 19960171, 31365983, 219561881]

約数ペア:

[(1, 219561881), (7, 31365983), (11, 19960171), (53, 4142677), (67, 3277043), (73, 3007697), (77, 2851453), (121, 1814561), (371, 591811), (469, 468149), (511, 429671), (583, 376607), (737, 297913), (803, 273427), (847, 259223), (3551, 61831), (3869, 56749), (4081, 53801), (4891, 44891), (5159, 42559), (5621, 39061), (6413, 34237), (8107, 27083), (8833, 24857)]