21519091

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:554

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 2742029

約数列:

[1, 11, 47, 107, 389, 517, 1177, 4279, 5029, 18283, 41623, 55319, 201113, 457853, 1956281, 21519091]

約数ペア:

[(1, 21519091), (11, 1956281), (47, 457853), (107, 201113), (389, 55319), (517, 41623), (1177, 18283), (4279, 5029)]