21204870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{706829}}^1$

素因数の和:706839

約数の個数: 16

約数和(自身を含む): 50891760

約数和(自身を除く): 29686890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 706829, 1413658, 2120487, 3534145, 4240974, 7068290, 10602435, 21204870]

約数ペア:

[(1, 21204870), (2, 10602435), (3, 7068290), (5, 4240974), (6, 3534145), (10, 2120487), (15, 1413658), (30, 706829)]