641309878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{212777}}^1$

素因数の和:212927

約数の個数: 16

約数和(自身を含む): 1057081104

約数和(自身を除く): 415771226

約数列:

[1, 2, 11, 22, 137, 274, 1507, 3014, 212777, 425554, 2340547, 4681094, 29150449, 58300898, 320654939, 641309878]

約数ペア:

[(1, 641309878), (2, 320654939), (11, 58300898), (22, 29150449), (137, 4681094), (274, 2340547), (1507, 425554), (3014, 212777)]