20090165859

素因数分解:

$3^4\times {\mathrm{521}}^1\times {\mathrm{476059}}^1$

素因数の和:476592

約数の個数: 20

約数和(自身を含む): 30068901720

約数和(自身を除く): 9978735861

約数列:

[1, 3, 9, 27, 81, 521, 1563, 4689, 14067, 42201, 476059, 1428177, 4284531, 12853593, 38560779, 248026739, 744080217, 2232240651, 6696721953, 20090165859]

約数ペア:

[(1, 20090165859), (3, 6696721953), (9, 2232240651), (27, 744080217), (81, 248026739), (521, 38560779), (1563, 12853593), (4689, 4284531), (14067, 1428177), (42201, 476059)]