21857140

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{18523}}^1$

素因数の和:18591

約数の個数: 24

約数和(自身を含む): 46680480

約数和(自身を除く): 24823340

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 18523, 37046, 74092, 92615, 185230, 370460, 1092857, 2185714, 4371428, 5464285, 10928570, 21857140]

約数ペア:

[(1, 21857140), (2, 10928570), (4, 5464285), (5, 4371428), (10, 2185714), (20, 1092857), (59, 370460), (118, 185230), (236, 92615), (295, 74092), (590, 37046), (1180, 18523)]