20197021

素因数分解:

${\mathrm{13}}^3\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:385

約数の個数: 16

約数和(自身を含む): 22705200

約数和(自身を除く): 2508179

約数列:

[1, 13, 29, 169, 317, 377, 2197, 4121, 4901, 9193, 53573, 63713, 119509, 696449, 1553617, 20197021]

約数ペア:

[(1, 20197021), (13, 1553617), (29, 696449), (169, 119509), (317, 63713), (377, 53573), (2197, 9193), (4121, 4901)]