20911253

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{269}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 2727787

約数列:

[1, 11, 37, 191, 269, 407, 2101, 2959, 7067, 9953, 51379, 77737, 109483, 565169, 1901023, 20911253]

約数ペア:

[(1, 20911253), (11, 1901023), (37, 565169), (191, 109483), (269, 77737), (407, 51379), (2101, 9953), (2959, 7067)]