20018401

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 2963999

約数列:

[1, 13, 17, 221, 239, 379, 3107, 4063, 4927, 6443, 52819, 83759, 90581, 1177553, 1539877, 20018401]

約数ペア:

[(1, 20018401), (13, 1539877), (17, 1177553), (221, 90581), (239, 83759), (379, 52819), (3107, 6443), (4063, 4927)]