20818103679

素因数分解:

$3^3\times {\mathrm{4903}}^1\times {\mathrm{157259}}^1$

素因数の和:162171

約数の個数: 16

約数和(自身を含む): 30848121600

約数和(自身を除く): 10030017921

約数列:

[1, 3, 9, 27, 4903, 14709, 44127, 132381, 157259, 471777, 1415331, 4245993, 771040877, 2313122631, 6939367893, 20818103679]

約数ペア:

[(1, 20818103679), (3, 6939367893), (9, 2313122631), (27, 771040877), (4903, 4245993), (14709, 1415331), (44127, 471777), (132381, 157259)]