20008815

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2081}}^1$

素因数の和:2730

約数の個数: 16

約数和(自身を含む): 32079456

約数和(自身を除く): 12070641

約数列:

[1, 3, 5, 15, 641, 1923, 2081, 3205, 6243, 9615, 10405, 31215, 1333921, 4001763, 6669605, 20008815]

約数ペア:

[(1, 20008815), (3, 6669605), (5, 4001763), (15, 1333921), (641, 31215), (1923, 10405), (2081, 9615), (3205, 6243)]