20903169

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16871}}^1$

素因数の和:16940

約数の個数: 16

約数和(自身を含む): 32394240

約数和(自身を除く): 11491071

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16871, 50613, 118097, 354291, 995389, 2986167, 6967723, 20903169]

約数ペア:

[(1, 20903169), (3, 6967723), (7, 2986167), (21, 995389), (59, 354291), (177, 118097), (413, 50613), (1239, 16871)]