20802507308

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42980387}}^1$

素因数の和:42980413

約数の個数: 18

約数和(自身を含む): 40014741228

約数和(自身を除く): 19212233920

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42980387, 85960774, 171921548, 472784257, 945568514, 1891137028, 5200626827, 10401253654, 20802507308]

約数ペア:

[(1, 20802507308), (2, 10401253654), (4, 5200626827), (11, 1891137028), (22, 945568514), (44, 472784257), (121, 171921548), (242, 85960774), (484, 42980387)]