2091405

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2081}}^1$

素因数の和:2156

約数の個数: 16

約数和(自身を含む): 3397824

約数和(自身を除く): 1306419

約数列:

[1, 3, 5, 15, 67, 201, 335, 1005, 2081, 6243, 10405, 31215, 139427, 418281, 697135, 2091405]

約数ペア:

[(1, 2091405), (3, 697135), (5, 418281), (15, 139427), (67, 31215), (201, 10405), (335, 6243), (1005, 2081)]