21886424

素因数分解:

$2^3\times 7^1\times {\mathrm{390829}}^1$

素因数の和:390842

約数の個数: 16

約数和(自身を含む): 46899600

約数和(自身を除く): 25013176

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 390829, 781658, 1563316, 2735803, 3126632, 5471606, 10943212, 21886424]

約数ペア:

[(1, 21886424), (2, 10943212), (4, 5471606), (7, 3126632), (8, 2735803), (14, 1563316), (28, 781658), (56, 390829)]