18712478

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{23929}}^1$

素因数の和:23971

約数の個数: 16

約数和(自身を含む): 31013280

約数和(自身を除く): 12300802

約数列:

[1, 2, 17, 23, 34, 46, 391, 782, 23929, 47858, 406793, 550367, 813586, 1100734, 9356239, 18712478]

約数ペア:

[(1, 18712478), (2, 9356239), (17, 1100734), (23, 813586), (34, 550367), (46, 406793), (391, 47858), (782, 23929)]