21911643

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1367}}^1$

素因数の和:1523

約数の個数: 24

約数和(自身を含む): 34358688

約数和(自身を除く): 12447045

約数列:

[1, 3, 9, 13, 39, 117, 137, 411, 1233, 1367, 1781, 4101, 5343, 12303, 16029, 17771, 53313, 159939, 187279, 561837, 1685511, 2434627, 7303881, 21911643]

約数ペア:

[(1, 21911643), (3, 7303881), (9, 2434627), (13, 1685511), (39, 561837), (117, 187279), (137, 159939), (411, 53313), (1233, 17771), (1367, 16029), (1781, 12303), (4101, 5343)]