21595989

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1699}}^1$

素因数の和:1944

約数の個数: 16

約数和(自身を含む): 30464000

約数和(自身を除く): 8868011

約数列:

[1, 3, 19, 57, 223, 669, 1699, 4237, 5097, 12711, 32281, 96843, 378877, 1136631, 7198663, 21595989]

約数ペア:

[(1, 21595989), (3, 7198663), (19, 1136631), (57, 378877), (223, 96843), (669, 32281), (1699, 12711), (4237, 5097)]