208767587

素因数分解:

$7^2\times {\mathrm{137}}^2\times {\mathrm{227}}^1$

素因数の和:515

約数の個数: 18

約数和(自身を含む): 245715372

約数和(自身を除く): 36947785

約数列:

[1, 7, 49, 137, 227, 959, 1589, 6713, 11123, 18769, 31099, 131383, 217693, 919681, 1523851, 4260563, 29823941, 208767587]

約数ペア:

[(1, 208767587), (7, 29823941), (49, 4260563), (137, 1523851), (227, 919681), (959, 217693), (1589, 131383), (6713, 31099), (11123, 18769)]