20941388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1567}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 39645312

約数和(自身を除く): 18703924

約数列:

[1, 2, 4, 13, 26, 52, 257, 514, 1028, 1567, 3134, 3341, 6268, 6682, 13364, 20371, 40742, 81484, 402719, 805438, 1610876, 5235347, 10470694, 20941388]

約数ペア:

[(1, 20941388), (2, 10470694), (4, 5235347), (13, 1610876), (26, 805438), (52, 402719), (257, 81484), (514, 40742), (1028, 20371), (1567, 13364), (3134, 6682), (3341, 6268)]