2147859

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 3590912

約数和(自身を除く): 1443053

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 331, 721, 927, 993, 2163, 2317, 2979, 6489, 6951, 20853, 34093, 102279, 238651, 306837, 715953, 2147859]

約数ペア:

[(1, 2147859), (3, 715953), (7, 306837), (9, 238651), (21, 102279), (63, 34093), (103, 20853), (309, 6951), (331, 6489), (721, 2979), (927, 2317), (993, 2163)]