20420378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{22639}}^1$

素因数の和:22693

約数の個数: 16

約数和(自身を含む): 34231680

約数和(自身を除く): 13811302

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 22639, 45278, 249029, 498058, 928199, 1856398, 10210189, 20420378]

約数ペア:

[(1, 20420378), (2, 10210189), (11, 1856398), (22, 928199), (41, 498058), (82, 249029), (451, 45278), (902, 22639)]