28291209

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 40306752

約数和(自身を除く): 12015543

約数列:

[1, 3, 19, 57, 151, 173, 361, 453, 519, 1083, 2869, 3287, 8607, 9861, 26123, 54511, 62453, 78369, 163533, 187359, 496337, 1489011, 9430403, 28291209]

約数ペア:

[(1, 28291209), (3, 9430403), (19, 1489011), (57, 496337), (151, 187359), (173, 163533), (361, 78369), (453, 62453), (519, 54511), (1083, 26123), (2869, 9861), (3287, 8607)]