21179650

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9851}}^1$

素因数の和:9906

約数の個数: 24

約数和(自身を含む): 40314384

約数和(自身を除く): 19134734

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9851, 19702, 49255, 98510, 246275, 423593, 492550, 847186, 2117965, 4235930, 10589825, 21179650]

約数ペア:

[(1, 21179650), (2, 10589825), (5, 4235930), (10, 2117965), (25, 847186), (43, 492550), (50, 423593), (86, 246275), (215, 98510), (430, 49255), (1075, 19702), (2150, 9851)]