19886069

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 23337600

約数和(自身を除く): 3451531

約数列:

[1, 7, 67, 109, 389, 469, 763, 2723, 7303, 26063, 42401, 51121, 182441, 296807, 2840867, 19886069]

約数ペア:

[(1, 19886069), (7, 2840867), (67, 296807), (109, 182441), (389, 51121), (469, 42401), (763, 26063), (2723, 7303)]