1621000405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{261241}}^1$

素因数の和:261336

約数の個数: 16

約数和(自身を含む): 2087846064

約数和(自身を除く): 466845659

約数列:

[1, 5, 17, 73, 85, 365, 1241, 6205, 261241, 1306205, 4441097, 19070593, 22205485, 95352965, 324200081, 1621000405]

約数ペア:

[(1, 1621000405), (5, 324200081), (17, 95352965), (73, 22205485), (85, 19070593), (365, 4441097), (1241, 1306205), (6205, 261241)]