28165709

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 33818400

約数和(自身を除く): 5652691

約数列:

[1, 11, 13, 109, 139, 143, 169, 1199, 1417, 1529, 1807, 1859, 15151, 15587, 18421, 19877, 23491, 166661, 196963, 202631, 258401, 2166593, 2560519, 28165709]

約数ペア:

[(1, 28165709), (11, 2560519), (13, 2166593), (109, 258401), (139, 202631), (143, 196963), (169, 166661), (1199, 23491), (1417, 19877), (1529, 18421), (1807, 15587), (1859, 15151)]