21076966

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12899}}^1$

素因数の和:12963

約数の個数: 16

約数和(自身を含む): 34056000

約数和(自身を除く): 12979034

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12899, 25798, 245081, 490162, 554657, 1109314, 10538483, 21076966]

約数ペア:

[(1, 21076966), (2, 10538483), (19, 1109314), (38, 554657), (43, 490162), (86, 245081), (817, 25798), (1634, 12899)]