12978119

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5437}}^1$

素因数の和:5486

約数の個数: 16

約数和(自身を含む): 16705536

約数和(自身を除く): 3727417

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 5437, 38059, 59807, 168547, 418649, 1179829, 1854017, 12978119]

約数ペア:

[(1, 12978119), (7, 1854017), (11, 1179829), (31, 418649), (77, 168547), (217, 59807), (341, 38059), (2387, 5437)]