21812410

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53201}}^1$

素因数の和:53249

約数の個数: 16

約数和(自身を含む): 40220712

約数和(自身を除く): 18408302

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53201, 106402, 266005, 532010, 2181241, 4362482, 10906205, 21812410]

約数ペア:

[(1, 21812410), (2, 10906205), (5, 4362482), (10, 2181241), (41, 532010), (82, 266005), (205, 106402), (410, 53201)]