128889621

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{157}}^2$

素因数の和:410

約数の個数: 36

約数和(自身を含む): 216713952

約数和(自身を除く): 87824331

約数列:

[1, 3, 7, 9, 21, 63, 83, 157, 249, 471, 581, 747, 1099, 1413, 1743, 3297, 5229, 9891, 13031, 24649, 39093, 73947, 91217, 117279, 172543, 221841, 273651, 517629, 820953, 1552887, 2045867, 6137601, 14321069, 18412803, 42963207, 128889621]

約数ペア:

[(1, 128889621), (3, 42963207), (7, 18412803), (9, 14321069), (21, 6137601), (63, 2045867), (83, 1552887), (157, 820953), (249, 517629), (471, 273651), (581, 221841), (747, 172543), (1099, 117279), (1413, 91217), (1743, 73947), (3297, 39093), (5229, 24649), (9891, 13031)]