19995941

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:548

約数の個数: 16

約数和(自身を含む): 23443200

約数和(自身を除く): 3447259

約数列:

[1, 7, 73, 109, 359, 511, 763, 2513, 7957, 26207, 39131, 55699, 183449, 273917, 2856563, 19995941]

約数ペア:

[(1, 19995941), (7, 2856563), (73, 273917), (109, 183449), (359, 55699), (511, 39131), (763, 26207), (2513, 7957)]