16205271

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 24330240

約数和(自身を除く): 8124969

約数列:

[1, 3, 19, 23, 47, 57, 69, 141, 263, 437, 789, 893, 1081, 1311, 2679, 3243, 4997, 6049, 12361, 14991, 18147, 20539, 37083, 61617, 114931, 234859, 284303, 344793, 704577, 852909, 5401757, 16205271]

約数ペア:

[(1, 16205271), (3, 5401757), (19, 852909), (23, 704577), (47, 344793), (57, 284303), (69, 234859), (141, 114931), (263, 61617), (437, 37083), (789, 20539), (893, 18147), (1081, 14991), (1311, 12361), (2679, 6049), (3243, 4997)]