20654096

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12781}}^1$

素因数の和:12890

約数の個数: 20

約数和(自身を含む): 40416684

約数和(自身を除く): 19762588

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12781, 25562, 51124, 102248, 204496, 1290881, 2581762, 5163524, 10327048, 20654096]

約数ペア:

[(1, 20654096), (2, 10327048), (4, 5163524), (8, 2581762), (16, 1290881), (101, 204496), (202, 102248), (404, 51124), (808, 25562), (1616, 12781)]