165381507

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 253519200

約数和(自身を除く): 88137693

約数列:

[1, 3, 9, 27, 71, 81, 149, 193, 213, 447, 579, 639, 1341, 1737, 1917, 4023, 5211, 5751, 10579, 12069, 13703, 15633, 28757, 31737, 41109, 86271, 95211, 123327, 258813, 285633, 369981, 776439, 856899, 1109943, 2041747, 2329317, 6125241, 18375723, 55127169, 165381507]

約数ペア:

[(1, 165381507), (3, 55127169), (9, 18375723), (27, 6125241), (71, 2329317), (81, 2041747), (149, 1109943), (193, 856899), (213, 776439), (447, 369981), (579, 285633), (639, 258813), (1341, 123327), (1737, 95211), (1917, 86271), (4023, 41109), (5211, 31737), (5751, 28757), (10579, 15633), (12069, 13703)]