18986812

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{28087}}^1$

素因数の和:28117

約数の個数: 18

約数和(自身を含む): 35980728

約数和(自身を除く): 16993916

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 28087, 56174, 112348, 365131, 730262, 1460524, 4746703, 9493406, 18986812]

約数ペア:

[(1, 18986812), (2, 9493406), (4, 4746703), (13, 1460524), (26, 730262), (52, 365131), (169, 112348), (338, 56174), (676, 28087)]