19402108

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40087}}^1$

素因数の和:40113

約数の個数: 18

約数和(自身を含む): 37321928

約数和(自身を除く): 17919820

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40087, 80174, 160348, 440957, 881914, 1763828, 4850527, 9701054, 19402108]

約数ペア:

[(1, 19402108), (2, 9701054), (4, 4850527), (11, 1763828), (22, 881914), (44, 440957), (121, 160348), (242, 80174), (484, 40087)]