128643249

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{44071}}^1$

素因数の和:44220

約数の個数: 16

約数和(自身を含む): 197442560

約数和(自身を除く): 68799311

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 44071, 132213, 308497, 925491, 6125869, 18377607, 42881083, 128643249]

約数ペア:

[(1, 128643249), (3, 42881083), (7, 18377607), (21, 6125869), (139, 925491), (417, 308497), (973, 132213), (2919, 44071)]