21054436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3931}}^1$

素因数の和:4051

約数の個数: 24

約数和(自身を含む): 40074944

約数和(自身を除く): 19020508

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 3931, 5356, 7862, 15724, 51103, 102206, 204412, 404893, 809786, 1619572, 5263609, 10527218, 21054436]

約数ペア:

[(1, 21054436), (2, 10527218), (4, 5263609), (13, 1619572), (26, 809786), (52, 404893), (103, 204412), (206, 102206), (412, 51103), (1339, 15724), (2678, 7862), (3931, 5356)]