19687031

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4603}}^1$

素因数の和:4670

約数の個数: 16

約数和(自身を含む): 24751104

約数和(自身を除く): 5064073

約数列:

[1, 7, 13, 47, 91, 329, 611, 4277, 4603, 32221, 59839, 216341, 418873, 1514387, 2812433, 19687031]

約数ペア:

[(1, 19687031), (7, 2812433), (13, 1514387), (47, 418873), (91, 216341), (329, 59839), (611, 32221), (4277, 4603)]