16998805

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{821}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 21128688

約数和(自身を除く): 4129883

約数列:

[1, 5, 41, 101, 205, 505, 821, 4105, 4141, 20705, 33661, 82921, 168305, 414605, 3399761, 16998805]

約数ペア:

[(1, 16998805), (5, 3399761), (41, 414605), (101, 168305), (205, 82921), (505, 33661), (821, 20705), (4105, 4141)]