21028665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{200273}}^1$

素因数の和:200288

約数の個数: 16

約数和(自身を含む): 38452608

約数和(自身を除く): 17423943

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 200273, 600819, 1001365, 1401911, 3004095, 4205733, 7009555, 21028665]

約数ペア:

[(1, 21028665), (3, 7009555), (5, 4205733), (7, 3004095), (15, 1401911), (21, 1001365), (35, 600819), (105, 200273)]