20828418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3761}}^1$

素因数の和:3850

約数の個数: 32

約数和(自身を含む): 45505152

約数和(自身を除く): 24676734

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 3761, 5538, 7522, 11283, 22566, 48893, 97786, 146679, 267031, 293358, 534062, 801093, 1602186, 3471403, 6942806, 10414209, 20828418]

約数ペア:

[(1, 20828418), (2, 10414209), (3, 6942806), (6, 3471403), (13, 1602186), (26, 801093), (39, 534062), (71, 293358), (78, 267031), (142, 146679), (213, 97786), (426, 48893), (923, 22566), (1846, 11283), (2769, 7522), (3761, 5538)]