21103121

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{433}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 23915136

約数和(自身を除く): 2812015

約数列:

[1, 13, 23, 163, 299, 433, 2119, 3749, 5629, 9959, 48737, 70579, 129467, 917527, 1623317, 21103121]

約数ペア:

[(1, 21103121), (13, 1623317), (23, 917527), (163, 129467), (299, 70579), (433, 48737), (2119, 9959), (3749, 5629)]