20564427

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{863}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 30357504

約数和(自身を除く): 9793077

約数列:

[1, 3, 13, 39, 47, 141, 169, 507, 611, 863, 1833, 2589, 7943, 11219, 23829, 33657, 40561, 121683, 145847, 437541, 527293, 1581879, 6854809, 20564427]

約数ペア:

[(1, 20564427), (3, 6854809), (13, 1581879), (39, 527293), (47, 437541), (141, 145847), (169, 121683), (507, 40561), (611, 33657), (863, 23829), (1833, 11219), (2589, 7943)]