21307659

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{1619}}^1$

素因数の和:1770

約数の個数: 16

約数和(自身を含む): 29393280

約数和(自身を除く): 8085621

約数列:

[1, 3, 41, 107, 123, 321, 1619, 4387, 4857, 13161, 66379, 173233, 199137, 519699, 7102553, 21307659]

約数ペア:

[(1, 21307659), (3, 7102553), (41, 519699), (107, 199137), (123, 173233), (321, 66379), (1619, 13161), (4387, 4857)]