28864215

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12577}}^1$

素因数の和:12608

約数の個数: 32

約数和(自身を含む): 54336960

約数和(自身を除く): 25472745

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 12577, 37731, 62885, 113193, 188655, 213809, 339579, 565965, 641427, 1069045, 1697895, 1924281, 3207135, 5772843, 9621405, 28864215]

約数ペア:

[(1, 28864215), (3, 9621405), (5, 5772843), (9, 3207135), (15, 1924281), (17, 1697895), (27, 1069045), (45, 641427), (51, 565965), (85, 339579), (135, 213809), (153, 188655), (255, 113193), (459, 62885), (765, 37731), (2295, 12577)]