21217230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{235747}}^1$

素因数の和:235760

約数の個数: 24

約数和(自身を含む): 55165032

約数和(自身を除く): 33947802

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 235747, 471494, 707241, 1178735, 1414482, 2121723, 2357470, 3536205, 4243446, 7072410, 10608615, 21217230]

約数ペア:

[(1, 21217230), (2, 10608615), (3, 7072410), (5, 4243446), (6, 3536205), (9, 2357470), (10, 2121723), (15, 1414482), (18, 1178735), (30, 707241), (45, 471494), (90, 235747)]