1320221187

素因数分解:

$3^6\times {\mathrm{137}}^1\times {\mathrm{13219}}^1$

素因数の和:13374

約数の個数: 28

約数和(自身を含む): 1994025480

約数和(自身を除く): 673804293

約数列:

[1, 3, 9, 27, 81, 137, 243, 411, 729, 1233, 3699, 11097, 13219, 33291, 39657, 99873, 118971, 356913, 1070739, 1811003, 3212217, 5433009, 9636651, 16299027, 48897081, 146691243, 440073729, 1320221187]

約数ペア:

[(1, 1320221187), (3, 440073729), (9, 146691243), (27, 48897081), (81, 16299027), (137, 9636651), (243, 5433009), (411, 3212217), (729, 1811003), (1233, 1070739), (3699, 356913), (11097, 118971), (13219, 99873), (33291, 39657)]