21342087

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2309}}^1$

素因数の和:2407

約数の個数: 24

約数和(自身を含む): 33633600

約数和(自身を除く): 12291513

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 2309, 3081, 6927, 9243, 20781, 30017, 90051, 182411, 270153, 547233, 1641699, 2371343, 7114029, 21342087]

約数ペア:

[(1, 21342087), (3, 7114029), (9, 2371343), (13, 1641699), (39, 547233), (79, 270153), (117, 182411), (237, 90051), (711, 30017), (1027, 20781), (2309, 9243), (3081, 6927)]