663628

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 1344672

約数和(自身を除く): 681044

約数列:

[1, 2, 4, 7, 14, 28, 137, 173, 274, 346, 548, 692, 959, 1211, 1918, 2422, 3836, 4844, 23701, 47402, 94804, 165907, 331814, 663628]

約数ペア:

[(1, 663628), (2, 331814), (4, 165907), (7, 94804), (14, 47402), (28, 23701), (137, 4844), (173, 3836), (274, 2422), (346, 1918), (548, 1211), (692, 959)]