28738233

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:315

約数の個数: 40

約数和(自身を含む): 45317888

約数和(自身を除く): 16579655

約数列:

[1, 3, 9, 27, 37, 43, 81, 111, 129, 223, 333, 387, 669, 999, 1161, 1591, 2007, 2997, 3483, 4773, 6021, 8251, 9589, 14319, 18063, 24753, 28767, 42957, 74259, 86301, 128871, 222777, 258903, 354793, 668331, 776709, 1064379, 3193137, 9579411, 28738233]

約数ペア:

[(1, 28738233), (3, 9579411), (9, 3193137), (27, 1064379), (37, 776709), (43, 668331), (81, 354793), (111, 258903), (129, 222777), (223, 128871), (333, 86301), (387, 74259), (669, 42957), (999, 28767), (1161, 24753), (1591, 18063), (2007, 14319), (2997, 9589), (3483, 8251), (4773, 6021)]