20955087

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 31135104

約数和(自身を除く): 10180017

約数列:

[1, 3, 9, 53, 159, 197, 223, 477, 591, 669, 1773, 2007, 10441, 11819, 31323, 35457, 43931, 93969, 106371, 131793, 395379, 2328343, 6985029, 20955087]

約数ペア:

[(1, 20955087), (3, 6985029), (9, 2328343), (53, 395379), (159, 131793), (197, 106371), (223, 93969), (477, 43931), (591, 35457), (669, 31323), (1773, 11819), (2007, 10441)]