21347564

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40127}}^1$

素因数の和:40157

約数の個数: 24

約数和(自身を含む): 44943360

約数和(自身を除く): 23595796

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40127, 80254, 160508, 280889, 561778, 762413, 1123556, 1524826, 3049652, 5336891, 10673782, 21347564]

約数ペア:

[(1, 21347564), (2, 10673782), (4, 5336891), (7, 3049652), (14, 1524826), (19, 1123556), (28, 762413), (38, 561778), (76, 280889), (133, 160508), (266, 80254), (532, 40127)]