20337891

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4463}}^1$

素因数の和:4511

約数の個数: 24

約数和(自身を含む): 32569344

約数和(自身を除く): 12231453

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4463, 4557, 13389, 31241, 93723, 138353, 218687, 415059, 656061, 968471, 2905413, 6779297, 20337891]

約数ペア:

[(1, 20337891), (3, 6779297), (7, 2905413), (21, 968471), (31, 656061), (49, 415059), (93, 218687), (147, 138353), (217, 93723), (651, 31241), (1519, 13389), (4463, 4557)]