21635080

素因数分解:

$2^3\times 5^1\times {\mathrm{540877}}^1$

素因数の和:540888

約数の個数: 16

約数和(自身を含む): 48679020

約数和(自身を除く): 27043940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 540877, 1081754, 2163508, 2704385, 4327016, 5408770, 10817540, 21635080]

約数ペア:

[(1, 21635080), (2, 10817540), (4, 5408770), (5, 4327016), (8, 2704385), (10, 2163508), (20, 1081754), (40, 540877)]