20319906

素因数分解:

$2^1\times 3^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 41564160

約数和(自身を除く): 21244254

約数列:

[1, 2, 3, 6, 79, 158, 163, 237, 263, 326, 474, 489, 526, 789, 978, 1578, 12877, 20777, 25754, 38631, 41554, 42869, 62331, 77262, 85738, 124662, 128607, 257214, 3386651, 6773302, 10159953, 20319906]

約数ペア:

[(1, 20319906), (2, 10159953), (3, 6773302), (6, 3386651), (79, 257214), (158, 128607), (163, 124662), (237, 85738), (263, 77262), (326, 62331), (474, 42869), (489, 41554), (526, 38631), (789, 25754), (978, 20777), (1578, 12877)]