77778873

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:355

約数の個数: 40

約数和(自身を含む): 120492768

約数和(自身を除く): 42713895

約数列:

[1, 3, 9, 27, 43, 81, 129, 137, 163, 387, 411, 489, 1161, 1233, 1467, 3483, 3699, 4401, 5891, 7009, 11097, 13203, 17673, 21027, 22331, 53019, 63081, 66993, 159057, 189243, 200979, 477171, 567729, 602937, 960233, 1808811, 2880699, 8642097, 25926291, 77778873]

約数ペア:

[(1, 77778873), (3, 25926291), (9, 8642097), (27, 2880699), (43, 1808811), (81, 960233), (129, 602937), (137, 567729), (163, 477171), (387, 200979), (411, 189243), (489, 159057), (1161, 66993), (1233, 63081), (1467, 53019), (3483, 22331), (3699, 21027), (4401, 17673), (5891, 13203), (7009, 11097)]