21988726721

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{7653577}}^1$

素因数の和:7653620

約数の個数: 12

約数和(自身を含む): 25210885932

約数和(自身を除く): 3222159211

約数列:

[1, 13, 17, 169, 221, 2873, 7653577, 99496501, 130110809, 1293454513, 1691440517, 21988726721]

約数ペア:

[(1, 21988726721), (13, 1691440517), (17, 1293454513), (169, 130110809), (221, 99496501), (2873, 7653577)]