21810399

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{7079}}^1$

素因数の和:7174

約数の個数: 16

約数和(自身を含む): 31718400

約数和(自身を除く): 9908001

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 7079, 21237, 92027, 276081, 559241, 1677723, 7270133, 21810399]

約数ペア:

[(1, 21810399), (3, 7270133), (13, 1677723), (39, 559241), (79, 276081), (237, 92027), (1027, 21237), (3081, 7079)]