287122

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:465

約数の個数: 16

約数和(自身を含む): 486144

約数和(自身を除く): 199022

約数列:

[1, 2, 11, 22, 31, 62, 341, 421, 682, 842, 4631, 9262, 13051, 26102, 143561, 287122]

約数ペア:

[(1, 287122), (2, 143561), (11, 26102), (22, 13051), (31, 9262), (62, 4631), (341, 842), (421, 682)]