18840705

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1823}}^1$

素因数の和:1897

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 14253951

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 1823, 2067, 3445, 5469, 9115, 10335, 23699, 27345, 71097, 96619, 118495, 289857, 355485, 483095, 1256047, 1449285, 3768141, 6280235, 18840705]

約数ペア:

[(1, 18840705), (3, 6280235), (5, 3768141), (13, 1449285), (15, 1256047), (39, 483095), (53, 355485), (65, 289857), (159, 118495), (195, 96619), (265, 71097), (689, 27345), (795, 23699), (1823, 10335), (2067, 9115), (3445, 5469)]