21154278190

素因数分解:

$2^1\times 5^1\times {\mathrm{109841}}^1\times {\mathrm{19259}}^1$

素因数の和:129107

約数の個数: 16

約数和(自身を含む): 38080024560

約数和(自身を除く): 16925746370

約数列:

[1, 2, 5, 10, 19259, 38518, 96295, 109841, 192590, 219682, 549205, 1098410, 2115427819, 4230855638, 10577139095, 21154278190]

約数ペア:

[(1, 21154278190), (2, 10577139095), (5, 4230855638), (10, 2115427819), (19259, 1098410), (38518, 549205), (96295, 219682), (109841, 192590)]