18828467

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1409}}^1$

素因数の和:1522

約数の個数: 16

約数和(自身を含む): 22740480

約数和(自身を除く): 3912013

約数列:

[1, 7, 23, 83, 161, 581, 1409, 1909, 9863, 13363, 32407, 116947, 226849, 818629, 2689781, 18828467]

約数ペア:

[(1, 18828467), (7, 2689781), (23, 818629), (83, 226849), (161, 116947), (581, 32407), (1409, 13363), (1909, 9863)]