81620901

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{1249}}^1$

素因数の和:1445

約数の個数: 24

約数和(自身を含む): 121095000

約数和(自身を除く): 39474099

約数列:

[1, 3, 9, 53, 137, 159, 411, 477, 1233, 1249, 3747, 7261, 11241, 21783, 65349, 66197, 171113, 198591, 513339, 595773, 1540017, 9068989, 27206967, 81620901]

約数ペア:

[(1, 81620901), (3, 27206967), (9, 9068989), (53, 1540017), (137, 595773), (159, 513339), (411, 198591), (477, 171113), (1233, 66197), (1249, 65349), (3747, 21783), (7261, 11241)]