289957887

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:605

約数の個数: 40

約数和(自身を含む): 443615040

約数和(自身を除く): 153657153

約数列:

[1, 3, 9, 27, 79, 81, 113, 237, 339, 401, 711, 1017, 1203, 2133, 3051, 3609, 6399, 8927, 9153, 10827, 26781, 31679, 32481, 45313, 80343, 95037, 135939, 241029, 285111, 407817, 723087, 855333, 1223451, 2565999, 3579727, 3670353, 10739181, 32217543, 96652629, 289957887]

約数ペア:

[(1, 289957887), (3, 96652629), (9, 32217543), (27, 10739181), (79, 3670353), (81, 3579727), (113, 2565999), (237, 1223451), (339, 855333), (401, 723087), (711, 407817), (1017, 285111), (1203, 241029), (2133, 135939), (3051, 95037), (3609, 80343), (6399, 45313), (8927, 32481), (9153, 31679), (10827, 26781)]