18430015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3727}}^1$

素因数の和:3798

約数の個数: 16

約数和(自身を含む): 23620608

約数和(自身を除く): 5190593

約数列:

[1, 5, 23, 43, 115, 215, 989, 3727, 4945, 18635, 85721, 160261, 428605, 801305, 3686003, 18430015]

約数ペア:

[(1, 18430015), (5, 3686003), (23, 801305), (43, 428605), (115, 160261), (215, 85721), (989, 18635), (3727, 4945)]