19398407

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1697}}^1$

素因数の和:1798

約数の個数: 16

約数和(自身を含む): 23473152

約数和(自身を除く): 4074745

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1697, 11431, 11879, 39031, 120487, 273217, 843409, 2771201, 19398407]

約数ペア:

[(1, 19398407), (7, 2771201), (23, 843409), (71, 273217), (161, 120487), (497, 39031), (1633, 11879), (1697, 11431)]