20181405

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{467}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 33606144

約数和(自身を除く): 13424739

約数列:

[1, 3, 5, 15, 43, 67, 129, 201, 215, 335, 467, 645, 1005, 1401, 2335, 2881, 7005, 8643, 14405, 20081, 31289, 43215, 60243, 93867, 100405, 156445, 301215, 469335, 1345427, 4036281, 6727135, 20181405]

約数ペア:

[(1, 20181405), (3, 6727135), (5, 4036281), (15, 1345427), (43, 469335), (67, 301215), (129, 156445), (201, 100405), (215, 93867), (335, 60243), (467, 43215), (645, 31289), (1005, 20081), (1401, 14405), (2335, 8643), (2881, 7005)]