21525610

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{4229}}^1$

素因数の和:4745

約数の個数: 16

約数和(自身を含む): 38831400

約数和(自身を除く): 17305790

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 4229, 5090, 8458, 21145, 42290, 2152561, 4305122, 10762805, 21525610]

約数ペア:

[(1, 21525610), (2, 10762805), (5, 4305122), (10, 2152561), (509, 42290), (1018, 21145), (2545, 8458), (4229, 5090)]