20372709

素因数分解:

$3^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1699}}^1$

素因数の和:2280

約数の個数: 16

約数和(自身を含む): 31116800

約数和(自身を除く): 10744091

約数列:

[1, 3, 7, 21, 571, 1699, 1713, 3997, 5097, 11893, 11991, 35679, 970129, 2910387, 6790903, 20372709]

約数ペア:

[(1, 20372709), (3, 6790903), (7, 2910387), (21, 970129), (571, 35679), (1699, 11991), (1713, 11893), (3997, 5097)]