20178698877

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{118004087}}^1$

素因数の和:118004112

約数の個数: 12

約数和(自身を含む): 30681062880

約数和(自身を除く): 10502364003

約数列:

[1, 3, 9, 19, 57, 171, 118004087, 354012261, 1062036783, 2242077653, 6726232959, 20178698877]

約数ペア:

[(1, 20178698877), (3, 6726232959), (9, 2242077653), (19, 1062036783), (57, 354012261), (171, 118004087)]