18396805

素因数分解:

$5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:674

約数の個数: 32

約数和(自身を含む): 27302400

約数和(自身を除く): 8905595

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 343, 595, 631, 833, 1715, 3155, 4165, 4417, 5831, 10727, 22085, 29155, 30919, 53635, 75089, 154595, 216433, 375445, 525623, 1082165, 2628115, 3679361, 18396805]

約数ペア:

[(1, 18396805), (5, 3679361), (7, 2628115), (17, 1082165), (35, 525623), (49, 375445), (85, 216433), (119, 154595), (245, 75089), (343, 53635), (595, 30919), (631, 29155), (833, 22085), (1715, 10727), (3155, 5831), (4165, 4417)]