81731937

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{1279}}^1$

素因数の和:1485

約数の個数: 32

約数和(自身を含む): 132710400

約数和(自身を除く): 50978463

約数列:

[1, 3, 7, 17, 21, 51, 119, 179, 357, 537, 1253, 1279, 3043, 3759, 3837, 8953, 9129, 21301, 21743, 26859, 63903, 65229, 152201, 228941, 456603, 686823, 1602587, 3891997, 4807761, 11675991, 27243979, 81731937]

約数ペア:

[(1, 81731937), (3, 27243979), (7, 11675991), (17, 4807761), (21, 3891997), (51, 1602587), (119, 686823), (179, 456603), (357, 228941), (537, 152201), (1253, 65229), (1279, 63903), (3043, 26859), (3759, 21743), (3837, 21301), (8953, 9129)]