20178504567

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{57488617}}^1$

素因数の和:57488639

約数の個数: 16

約数和(自身を含む): 32193626080

約数和(自身を除く): 12015121513

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 57488617, 172465851, 517397553, 747352021, 1552192659, 2242056063, 6726168189, 20178504567]

約数ペア:

[(1, 20178504567), (3, 6726168189), (9, 2242056063), (13, 1552192659), (27, 747352021), (39, 517397553), (117, 172465851), (351, 57488617)]