20868265

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2029}}^1$

素因数の和:2073

約数の個数: 24

約数和(自身を含む): 29158920

約数和(自身を除く): 8290655

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2029, 2057, 10145, 10285, 22319, 34493, 111595, 172465, 245509, 379423, 1227545, 1897115, 4173653, 20868265]

約数ペア:

[(1, 20868265), (5, 4173653), (11, 1897115), (17, 1227545), (55, 379423), (85, 245509), (121, 172465), (187, 111595), (605, 34493), (935, 22319), (2029, 10285), (2057, 10145)]