87780147

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2347}}^1$

素因数の和:2507

約数の個数: 32

約数和(自身を含む): 145162752

約数和(自身を除く): 57382605

約数列:

[1, 3, 7, 13, 21, 39, 91, 137, 273, 411, 959, 1781, 2347, 2877, 5343, 7041, 12467, 16429, 30511, 37401, 49287, 91533, 213577, 321539, 640731, 964617, 2250773, 4180007, 6752319, 12540021, 29260049, 87780147]

約数ペア:

[(1, 87780147), (3, 29260049), (7, 12540021), (13, 6752319), (21, 4180007), (39, 2250773), (91, 964617), (137, 640731), (273, 321539), (411, 213577), (959, 91533), (1781, 49287), (2347, 37401), (2877, 30511), (5343, 16429), (7041, 12467)]