51690627

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1973}}^1$

素因数の和:2091

約数の個数: 24

約数和(自身を含む): 77601888

約数和(自身を除く): 25911261

約数列:

[1, 3, 9, 41, 71, 123, 213, 369, 639, 1973, 2911, 5919, 8733, 17757, 26199, 80893, 140083, 242679, 420249, 728037, 1260747, 5743403, 17230209, 51690627]

約数ペア:

[(1, 51690627), (3, 17230209), (9, 5743403), (41, 1260747), (71, 728037), (123, 420249), (213, 242679), (369, 140083), (639, 80893), (1973, 26199), (2911, 17757), (5919, 8733)]