21090344

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{541}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 43316640

約数和(自身を除く): 22226296

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 443, 541, 886, 1082, 1772, 2164, 3544, 4328, 4873, 5951, 9746, 11902, 19492, 23804, 38984, 47608, 239663, 479326, 958652, 1917304, 2636293, 5272586, 10545172, 21090344]

約数ペア:

[(1, 21090344), (2, 10545172), (4, 5272586), (8, 2636293), (11, 1917304), (22, 958652), (44, 479326), (88, 239663), (443, 47608), (541, 38984), (886, 23804), (1082, 19492), (1772, 11902), (2164, 9746), (3544, 5951), (4328, 4873)]