21804013

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16657}}^1$

素因数の和:16692

約数の個数: 16

約数和(自身を含む): 28785024

約数和(自身を除く): 6981011

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16657, 116599, 183227, 283169, 1282589, 1982183, 3114859, 21804013]

約数ペア:

[(1, 21804013), (7, 3114859), (11, 1982183), (17, 1282589), (77, 283169), (119, 183227), (187, 116599), (1309, 16657)]