20939545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16553}}^1$

素因数の和:16592

約数の個数: 16

約数和(自身を含む): 28605312

約数和(自身を除く): 7665767

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16553, 82765, 182083, 380719, 910415, 1903595, 4187909, 20939545]

約数ペア:

[(1, 20939545), (5, 4187909), (11, 1903595), (23, 910415), (55, 380719), (115, 182083), (253, 82765), (1265, 16553)]