19880812

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15107}}^1$

素因数の和:15165

約数の個数: 24

約数和(自身を含む): 40610304

約数和(自身を除く): 20729492

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15107, 30214, 60428, 105749, 211498, 422996, 710029, 1420058, 2840116, 4970203, 9940406, 19880812]

約数ペア:

[(1, 19880812), (2, 9940406), (4, 4970203), (7, 2840116), (14, 1420058), (28, 710029), (47, 422996), (94, 211498), (188, 105749), (329, 60428), (658, 30214), (1316, 15107)]