20464821

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10289}}^1$

素因数の和:10325

約数の個数: 24

約数和(自身を含む): 33710040

約数和(自身を除く): 13245219

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10289, 30867, 92601, 133757, 174913, 401271, 524739, 1203813, 1574217, 2273869, 6821607, 20464821]

約数ペア:

[(1, 20464821), (3, 6821607), (9, 2273869), (13, 1574217), (17, 1203813), (39, 524739), (51, 401271), (117, 174913), (153, 133757), (221, 92601), (663, 30867), (1989, 10289)]