20158731

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 30060576

約数和(自身を除く): 9901845

約数列:

[1, 3, 9, 61, 73, 183, 219, 503, 549, 657, 1509, 4453, 4527, 13359, 30683, 36719, 40077, 92049, 110157, 276147, 330471, 2239859, 6719577, 20158731]

約数ペア:

[(1, 20158731), (3, 6719577), (9, 2239859), (61, 330471), (73, 276147), (183, 110157), (219, 92049), (503, 40077), (549, 36719), (657, 30683), (1509, 13359), (4453, 4527)]