20453985

素因数分解:

$3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1193}}^1$

素因数の和:1334

約数の個数: 32

約数和(自身を含む): 36679680

約数和(自身を除く): 16225695

約数列:

[1, 3, 5, 9, 15, 27, 45, 127, 135, 381, 635, 1143, 1193, 1905, 3429, 3579, 5715, 5965, 10737, 17145, 17895, 32211, 53685, 151511, 161055, 454533, 757555, 1363599, 2272665, 4090797, 6817995, 20453985]

約数ペア:

[(1, 20453985), (3, 6817995), (5, 4090797), (9, 2272665), (15, 1363599), (27, 757555), (45, 454533), (127, 161055), (135, 151511), (381, 53685), (635, 32211), (1143, 17895), (1193, 17145), (1905, 10737), (3429, 5965), (3579, 5715)]