13901391

素因数分解:

$3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{839}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 23063040

約数和(自身を除く): 9161649

約数列:

[1, 3, 7, 9, 21, 63, 263, 789, 839, 1841, 2367, 2517, 5523, 5873, 7551, 16569, 17619, 52857, 220657, 661971, 1544599, 1985913, 4633797, 13901391]

約数ペア:

[(1, 13901391), (3, 4633797), (7, 1985913), (9, 1544599), (21, 661971), (63, 220657), (263, 52857), (789, 17619), (839, 16569), (1841, 7551), (2367, 5873), (2517, 5523)]