21618248

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{5309}}^1$

素因数の和:5824

約数の個数: 16

約数和(自身を含む): 40621500

約数和(自身を除く): 19003252

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 5309, 10618, 21236, 42472, 2702281, 5404562, 10809124, 21618248]

約数ペア:

[(1, 21618248), (2, 10809124), (4, 5404562), (8, 2702281), (509, 42472), (1018, 21236), (2036, 10618), (4072, 5309)]