20677995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2719}}^1$

素因数の和:2756

約数の個数: 36

約数和(自身を含む): 38825280

約数和(自身を除く): 18147285

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 845, 1521, 2535, 2719, 7605, 8157, 13595, 24471, 35347, 40785, 106041, 122355, 176735, 318123, 459511, 530205, 1378533, 1590615, 2297555, 4135599, 6892665, 20677995]

約数ペア:

[(1, 20677995), (3, 6892665), (5, 4135599), (9, 2297555), (13, 1590615), (15, 1378533), (39, 530205), (45, 459511), (65, 318123), (117, 176735), (169, 122355), (195, 106041), (507, 40785), (585, 35347), (845, 24471), (1521, 13595), (2535, 8157), (2719, 7605)]