18747351

素因数分解:

$3^2\times 7^3\times {\mathrm{6073}}^1$

素因数の和:6100

約数の個数: 24

約数和(自身を含む): 31584800

約数和(自身を除く): 12837449

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6073, 18219, 42511, 54657, 127533, 297577, 382599, 892731, 2083039, 2678193, 6249117, 18747351]

約数ペア:

[(1, 18747351), (3, 6249117), (7, 2678193), (9, 2083039), (21, 892731), (49, 382599), (63, 297577), (147, 127533), (343, 54657), (441, 42511), (1029, 18219), (3087, 6073)]