17891939

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4261}}^1$

素因数の和:4310

約数の個数: 16

約数和(自身を含む): 21480480

約数和(自身を除く): 3588541

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 4261, 55393, 72437, 80959, 941681, 1052467, 1376303, 17891939]

約数ペア:

[(1, 17891939), (13, 1376303), (17, 1052467), (19, 941681), (221, 80959), (247, 72437), (323, 55393), (4199, 4261)]