21782397

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1093}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 36268288

約数和(自身を除く): 14485891

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1093, 1533, 2847, 3279, 6643, 7651, 14209, 19929, 22953, 42627, 79789, 99463, 239367, 298389, 558523, 1037257, 1675569, 3111771, 7260799, 21782397]

約数ペア:

[(1, 21782397), (3, 7260799), (7, 3111771), (13, 1675569), (21, 1037257), (39, 558523), (73, 298389), (91, 239367), (219, 99463), (273, 79789), (511, 42627), (949, 22953), (1093, 19929), (1533, 14209), (2847, 7651), (3279, 6643)]