81965793

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2657}}^1$

素因数の和:2793

約数の個数: 32

約数和(自身を含む): 135749376

約数和(自身を除く): 53783583

約数列:

[1, 3, 7, 13, 21, 39, 91, 113, 273, 339, 791, 1469, 2373, 2657, 4407, 7971, 10283, 18599, 30849, 34541, 55797, 103623, 241787, 300241, 725361, 900723, 2101687, 3903133, 6305061, 11709399, 27321931, 81965793]

約数ペア:

[(1, 81965793), (3, 27321931), (7, 11709399), (13, 6305061), (21, 3903133), (39, 2101687), (91, 900723), (113, 725361), (273, 300241), (339, 241787), (791, 103623), (1469, 55797), (2373, 34541), (2657, 30849), (4407, 18599), (7971, 10283)]