628291209

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{593}}^1\times {\mathrm{3881}}^1$

素因数の和:4497

約数の個数: 32

約数和(自身を含む): 1033046784

約数和(自身を除く): 404755575

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 593, 1779, 3881, 4151, 7709, 11643, 12453, 23127, 27167, 50453, 53963, 81501, 151359, 161889, 353171, 1059513, 2301433, 6904299, 16110031, 29918629, 48330093, 89755887, 209430403, 628291209]

約数ペア:

[(1, 628291209), (3, 209430403), (7, 89755887), (13, 48330093), (21, 29918629), (39, 16110031), (91, 6904299), (273, 2301433), (593, 1059513), (1779, 353171), (3881, 161889), (4151, 151359), (7709, 81501), (11643, 53963), (12453, 50453), (23127, 27167)]