21105780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351763}}^1$

素因数の和:351775

約数の個数: 24

約数和(自身を含む): 59096352

約数和(自身を除く): 37990572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351763, 703526, 1055289, 1407052, 1758815, 2110578, 3517630, 4221156, 5276445, 7035260, 10552890, 21105780]

約数ペア:

[(1, 21105780), (2, 10552890), (3, 7035260), (4, 5276445), (5, 4221156), (6, 3517630), (10, 2110578), (12, 1758815), (15, 1407052), (20, 1055289), (30, 703526), (60, 351763)]