222721037

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 286792704

約数和(自身を除く): 64071667

約数列:

[1, 7, 11, 43, 77, 137, 301, 473, 491, 959, 1507, 3311, 3437, 5401, 5891, 10549, 21113, 37807, 41237, 64801, 67267, 147791, 232243, 453607, 470869, 739937, 1625701, 2892481, 5179559, 20247367, 31817291, 222721037]

約数ペア:

[(1, 222721037), (7, 31817291), (11, 20247367), (43, 5179559), (77, 2892481), (137, 1625701), (301, 739937), (473, 470869), (491, 453607), (959, 232243), (1507, 147791), (3311, 67267), (3437, 64801), (5401, 41237), (5891, 37807), (10549, 21113)]