20964868

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1259}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 38525760

約数和(自身を除く): 17560892

約数列:

[1, 2, 4, 23, 46, 92, 181, 362, 724, 1259, 2518, 4163, 5036, 8326, 16652, 28957, 57914, 115828, 227879, 455758, 911516, 5241217, 10482434, 20964868]

約数ペア:

[(1, 20964868), (2, 10482434), (4, 5241217), (23, 911516), (46, 455758), (92, 227879), (181, 115828), (362, 57914), (724, 28957), (1259, 16652), (2518, 8326), (4163, 5036)]