21008950

素因数分解:

$2^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{3067}}^1$

素因数の和:3216

約数の個数: 24

約数和(自身を含む): 39374712

約数和(自身を除く): 18365762

約数列:

[1, 2, 5, 10, 25, 50, 137, 274, 685, 1370, 3067, 3425, 6134, 6850, 15335, 30670, 76675, 153350, 420179, 840358, 2100895, 4201790, 10504475, 21008950]

約数ペア:

[(1, 21008950), (2, 10504475), (5, 4201790), (10, 2100895), (25, 840358), (50, 420179), (137, 153350), (274, 76675), (685, 30670), (1370, 15335), (3067, 6850), (3425, 6134)]