20845305

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2741}}^1$

素因数の和:2778

約数の個数: 36

約数和(自身を含む): 39139308

約数和(自身を除く): 18294003

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 845, 1521, 2535, 2741, 7605, 8223, 13705, 24669, 35633, 41115, 106899, 123345, 178165, 320697, 463229, 534495, 1389687, 1603485, 2316145, 4169061, 6948435, 20845305]

約数ペア:

[(1, 20845305), (3, 6948435), (5, 4169061), (9, 2316145), (13, 1603485), (15, 1389687), (39, 534495), (45, 463229), (65, 320697), (117, 178165), (169, 123345), (195, 106899), (507, 41115), (585, 35633), (845, 24669), (1521, 13705), (2535, 8223), (2741, 7605)]