19808305

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{1129}}^1$

素因数の和:1185

約数の個数: 24

約数和(自身を含む): 27052200

約数和(自身を除く): 7243895

約数列:

[1, 5, 11, 29, 55, 121, 145, 319, 605, 1129, 1595, 3509, 5645, 12419, 17545, 32741, 62095, 136609, 163705, 360151, 683045, 1800755, 3961661, 19808305]

約数ペア:

[(1, 19808305), (5, 3961661), (11, 1800755), (29, 683045), (55, 360151), (121, 163705), (145, 136609), (319, 62095), (605, 32741), (1129, 17545), (1595, 12419), (3509, 5645)]