18978663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{30269}}^1$

素因数の和:30302

約数の個数: 16

約数和(自身を含む): 29059200

約数和(自身を除く): 10080537

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 30269, 90807, 332959, 575111, 998877, 1725333, 6326221, 18978663]

約数ペア:

[(1, 18978663), (3, 6326221), (11, 1725333), (19, 998877), (33, 575111), (57, 332959), (209, 90807), (627, 30269)]