1680491961

素因数分解:

$3^3\times {\mathrm{691}}^1\times {\mathrm{90073}}^1$

素因数の和:90773

約数の個数: 16

約数和(自身を含む): 2493248320

約数和(自身を除く): 812756359

約数列:

[1, 3, 9, 27, 691, 2073, 6219, 18657, 90073, 270219, 810657, 2431971, 62240443, 186721329, 560163987, 1680491961]

約数ペア:

[(1, 1680491961), (3, 560163987), (9, 186721329), (27, 62240443), (691, 2431971), (2073, 810657), (6219, 270219), (18657, 90073)]