19882457

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{271}}^1$

素因数の和:548

約数の個数: 16

約数和(自身を含む): 23396352

約数和(自身を除く): 3513895

約数列:

[1, 7, 47, 223, 271, 329, 1561, 1897, 10481, 12737, 60433, 73367, 89159, 423031, 2840351, 19882457]

約数ペア:

[(1, 19882457), (7, 2840351), (47, 423031), (223, 89159), (271, 73367), (329, 60433), (1561, 12737), (1897, 10481)]