645318961

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{11173}}^1$

素因数の和:11440

約数の個数: 16

約数和(自身を含む): 760904704

約数和(自身を除く): 115585743

約数列:

[1, 7, 37, 223, 259, 1561, 8251, 11173, 57757, 78211, 413401, 2491579, 2893807, 17441053, 92188423, 645318961]

約数ペア:

[(1, 645318961), (7, 92188423), (37, 17441053), (223, 2893807), (259, 2491579), (1561, 413401), (8251, 78211), (11173, 57757)]