261036377

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 326592000

約数和(自身を除く): 65555623

約数列:

[1, 7, 17, 49, 89, 119, 343, 503, 623, 833, 1513, 3521, 4361, 5831, 8551, 10591, 24647, 30527, 44767, 59857, 74137, 172529, 313369, 418999, 518959, 761039, 2193583, 2932993, 5327273, 15355081, 37290911, 261036377]

約数ペア:

[(1, 261036377), (7, 37290911), (17, 15355081), (49, 5327273), (89, 2932993), (119, 2193583), (343, 761039), (503, 518959), (623, 418999), (833, 313369), (1513, 172529), (3521, 74137), (4361, 59857), (5831, 44767), (8551, 30527), (10591, 24647)]