21000768269

素因数分解:

${\mathrm{13}}^2\times {\mathrm{641}}^1\times {\mathrm{193861}}^1$

素因数の和:194528

約数の個数: 12

約数和(自身を含む): 22776070932

約数和(自身を除く): 1775302663

約数列:

[1, 13, 169, 641, 8333, 108329, 193861, 2520193, 32762509, 124264901, 1615443713, 21000768269]

約数ペア:

[(1, 21000768269), (13, 1615443713), (169, 124264901), (641, 32762509), (8333, 2520193), (108329, 193861)]