21154740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352579}}^1$

素因数の和:352591

約数の個数: 24

約数和(自身を含む): 59233440

約数和(自身を除く): 38078700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352579, 705158, 1057737, 1410316, 1762895, 2115474, 3525790, 4230948, 5288685, 7051580, 10577370, 21154740]

約数ペア:

[(1, 21154740), (2, 10577370), (3, 7051580), (4, 5288685), (5, 4230948), (6, 3525790), (10, 2115474), (12, 1762895), (15, 1410316), (20, 1057737), (30, 705158), (60, 352579)]