18311657

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{673}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 23681664

約数和(自身を除く): 5370007

約数列:

[1, 7, 13, 23, 91, 161, 169, 299, 673, 1183, 2093, 3887, 4711, 8749, 15479, 27209, 61243, 108353, 113737, 201227, 796159, 1408589, 2615951, 18311657]

約数ペア:

[(1, 18311657), (7, 2615951), (13, 1408589), (23, 796159), (91, 201227), (161, 113737), (169, 108353), (299, 61243), (673, 27209), (1183, 15479), (2093, 8749), (3887, 4711)]