20591805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8123}}^1$

素因数の和:8157

約数の個数: 24

約数和(自身を含む): 35680608

約数和(自身を除く): 15088803

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8123, 24369, 40615, 105599, 121845, 316797, 527995, 1372787, 1583985, 4118361, 6863935, 20591805]

約数ペア:

[(1, 20591805), (3, 6863935), (5, 4118361), (13, 1583985), (15, 1372787), (39, 527995), (65, 316797), (169, 121845), (195, 105599), (507, 40615), (845, 24369), (2535, 8123)]