20780452777

素因数分解:

$7^2\times {\mathrm{409}}^1\times {\mathrm{797}}^1\times {\mathrm{1301}}^1$

素因数の和:2521

約数の個数: 24

約数和(自身を含む): 24281336520

約数和(自身を除く): 3500883743

約数列:

[1, 7, 49, 409, 797, 1301, 2863, 5579, 9107, 20041, 39053, 63749, 325973, 532109, 1036897, 2281811, 3724763, 7258279, 15972677, 26073341, 50807953, 424090873, 2968636111, 20780452777]

約数ペア:

[(1, 20780452777), (7, 2968636111), (49, 424090873), (409, 50807953), (797, 26073341), (1301, 15972677), (2863, 7258279), (5579, 3724763), (9107, 2281811), (20041, 1036897), (39053, 532109), (63749, 325973)]