21410380

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22777}}^1$

素因数の和:22833

約数の個数: 24

約数和(自身を含む): 45920448

約数和(自身を除く): 24510068

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22777, 45554, 91108, 113885, 227770, 455540, 1070519, 2141038, 4282076, 5352595, 10705190, 21410380]

約数ペア:

[(1, 21410380), (2, 10705190), (4, 5352595), (5, 4282076), (10, 2141038), (20, 1070519), (47, 455540), (94, 227770), (188, 113885), (235, 91108), (470, 45554), (940, 22777)]