321368

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 644700

約数和(自身を除く): 323332

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 289, 556, 578, 1112, 1156, 2312, 2363, 4726, 9452, 18904, 40171, 80342, 160684, 321368]

約数ペア:

[(1, 321368), (2, 160684), (4, 80342), (8, 40171), (17, 18904), (34, 9452), (68, 4726), (136, 2363), (139, 2312), (278, 1156), (289, 1112), (556, 578)]