20186793

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:235

約数の個数: 48

約数和(自身を含む): 33962880

約数和(自身を除く): 13776087

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 121, 167, 297, 333, 363, 407, 501, 999, 1089, 1221, 1503, 1837, 3267, 3663, 4477, 4509, 5511, 6179, 10989, 13431, 16533, 18537, 20207, 40293, 49599, 55611, 60621, 67969, 120879, 166833, 181863, 203907, 545589, 611721, 747659, 1835163, 2242977, 6728931, 20186793]

約数ペア:

[(1, 20186793), (3, 6728931), (9, 2242977), (11, 1835163), (27, 747659), (33, 611721), (37, 545589), (99, 203907), (111, 181863), (121, 166833), (167, 120879), (297, 67969), (333, 60621), (363, 55611), (407, 49599), (501, 40293), (999, 20207), (1089, 18537), (1221, 16533), (1503, 13431), (1837, 10989), (3267, 6179), (3663, 5511), (4477, 4509)]