72097209

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:311

約数の個数: 40

約数和(自身を含む): 111208680

約数和(自身を除く): 39111471

約数列:

[1, 3, 9, 27, 73, 81, 89, 137, 219, 267, 411, 657, 801, 1233, 1971, 2403, 3699, 5913, 6497, 7209, 10001, 11097, 12193, 19491, 30003, 36579, 58473, 90009, 109737, 175419, 270027, 329211, 526257, 810081, 890089, 987633, 2670267, 8010801, 24032403, 72097209]

約数ペア:

[(1, 72097209), (3, 24032403), (9, 8010801), (27, 2670267), (73, 987633), (81, 890089), (89, 810081), (137, 526257), (219, 329211), (267, 270027), (411, 175419), (657, 109737), (801, 90009), (1233, 58473), (1971, 36579), (2403, 30003), (3699, 19491), (5913, 12193), (6497, 11097), (7209, 10001)]