19993622

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5021}}^1$

素因数の和:5215

約数の個数: 16

約数和(自身を含む): 32904144

約数和(自身を除く): 12910522

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 5021, 10042, 55231, 110462, 908801, 1817602, 9996811, 19993622]

約数ペア:

[(1, 19993622), (2, 9996811), (11, 1817602), (22, 908801), (181, 110462), (362, 55231), (1991, 10042), (3982, 5021)]