21111727

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2297}}^1$

素因数の和:2418

約数の個数: 16

約数和(自身を含む): 26252352

約数和(自身を除く): 5140625

約数列:

[1, 7, 13, 91, 101, 707, 1313, 2297, 9191, 16079, 29861, 209027, 231997, 1623979, 3015961, 21111727]

約数ペア:

[(1, 21111727), (7, 3015961), (13, 1623979), (91, 231997), (101, 209027), (707, 29861), (1313, 16079), (2297, 9191)]