20887105

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{6263}}^1$

素因数の和:6320

約数の個数: 16

約数和(自身を含む): 27060480

約数和(自身を除く): 6173375

約数列:

[1, 5, 23, 29, 115, 145, 667, 3335, 6263, 31315, 144049, 181627, 720245, 908135, 4177421, 20887105]

約数ペア:

[(1, 20887105), (5, 4177421), (23, 908135), (29, 720245), (115, 181627), (145, 144049), (667, 31315), (3335, 6263)]