21420898

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{1013}}^1$

素因数の和:1221

約数の個数: 16

約数和(自身を含む): 32792760

約数和(自身を除く): 11371862

約数列:

[1, 2, 97, 109, 194, 218, 1013, 2026, 10573, 21146, 98261, 110417, 196522, 220834, 10710449, 21420898]

約数ペア:

[(1, 21420898), (2, 10710449), (97, 220834), (109, 196522), (194, 110417), (218, 98261), (1013, 21146), (2026, 10573)]