21350245

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5701}}^1$

素因数の和:5820

約数の個数: 16

約数和(自身を含む): 29559168

約数和(自身を除く): 8208923

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5701, 28505, 39907, 199535, 610007, 3050035, 4270049, 21350245]

約数ペア:

[(1, 21350245), (5, 4270049), (7, 3050035), (35, 610007), (107, 199535), (535, 39907), (749, 28505), (3745, 5701)]