20989846

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{2521}}^1$

素因数の和:2727

約数の個数: 16

約数和(自身を含む): 33048288

約数和(自身を除く): 12058442

約数列:

[1, 2, 23, 46, 181, 362, 2521, 4163, 5042, 8326, 57983, 115966, 456301, 912602, 10494923, 20989846]

約数ペア:

[(1, 20989846), (2, 10494923), (23, 912602), (46, 456301), (181, 115966), (362, 57983), (2521, 8326), (4163, 5042)]