28396215

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4817}}^1$

素因数の和:4959

約数の個数: 24

約数和(自身を含む): 49606128

約数和(自身を除く): 21209913

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 4817, 5895, 14451, 24085, 43353, 72255, 216765, 631027, 1893081, 3155135, 5679243, 9465405, 28396215]

約数ペア:

[(1, 28396215), (3, 9465405), (5, 5679243), (9, 3155135), (15, 1893081), (45, 631027), (131, 216765), (393, 72255), (655, 43353), (1179, 24085), (1965, 14451), (4817, 5895)]