20210909

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 22208256

約数和(自身を除く): 1997347

約数列:

[1, 17, 41, 107, 271, 697, 1819, 4387, 4607, 11111, 28997, 74579, 188887, 492949, 1188877, 20210909]

約数ペア:

[(1, 20210909), (17, 1188877), (41, 492949), (107, 188887), (271, 74579), (697, 28997), (1819, 11111), (4387, 4607)]