21606123

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{773}}^1$

素因数の和:816

約数の個数: 32

約数和(自身を含む): 36260352

約数和(自身を除く): 14654229

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 773, 847, 1331, 2319, 2541, 3993, 5411, 8503, 9317, 16233, 25509, 27951, 59521, 93533, 178563, 280599, 654731, 1028863, 1964193, 3086589, 7202041, 21606123]

約数ペア:

[(1, 21606123), (3, 7202041), (7, 3086589), (11, 1964193), (21, 1028863), (33, 654731), (77, 280599), (121, 178563), (231, 93533), (363, 59521), (773, 27951), (847, 25509), (1331, 16233), (2319, 9317), (2541, 8503), (3993, 5411)]