28355145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20773}}^1$

素因数の和:20801

約数の個数: 32

約数和(自身を含む): 55840512

約数和(自身を除く): 27485367

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 20773, 62319, 103865, 145411, 270049, 311595, 436233, 727055, 810147, 1350245, 1890343, 2181165, 4050735, 5671029, 9451715, 28355145]

約数ペア:

[(1, 28355145), (3, 9451715), (5, 5671029), (7, 4050735), (13, 2181165), (15, 1890343), (21, 1350245), (35, 810147), (39, 727055), (65, 436233), (91, 311595), (105, 270049), (195, 145411), (273, 103865), (455, 62319), (1365, 20773)]