663916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 1290240

約数和(自身を除く): 626324

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 191, 316, 382, 764, 869, 1738, 2101, 3476, 4202, 8404, 15089, 30178, 60356, 165979, 331958, 663916]

約数ペア:

[(1, 663916), (2, 331958), (4, 165979), (11, 60356), (22, 30178), (44, 15089), (79, 8404), (158, 4202), (191, 3476), (316, 2101), (382, 1738), (764, 869)]