16706781

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20399}}^1$

素因数の和:20425

約数の個数: 24

約数和(自身を含む): 29702400

約数和(自身を除く): 12995619

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 20399, 61197, 142793, 183591, 265187, 428379, 795561, 1285137, 1856309, 2386683, 5568927, 16706781]

約数ペア:

[(1, 16706781), (3, 5568927), (7, 2386683), (9, 1856309), (13, 1285137), (21, 795561), (39, 428379), (63, 265187), (91, 183591), (117, 142793), (273, 61197), (819, 20399)]