21689642

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12451}}^1$

素因数の和:12533

約数の個数: 16

約数和(自身を含む): 35562912

約数和(自身を除く): 13873270

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12451, 24902, 161863, 323726, 834217, 1668434, 10844821, 21689642]

約数ペア:

[(1, 21689642), (2, 10844821), (13, 1668434), (26, 834217), (67, 323726), (134, 161863), (871, 24902), (1742, 12451)]