21860540065

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2129}}^1\times {\mathrm{22567}}^1$

素因数の和:24721

約数の個数: 32

約数和(自身を含む): 32302932480

約数和(自身を除く): 10442392415

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 2129, 10645, 14903, 22567, 27677, 74515, 112835, 138385, 157969, 193739, 293371, 789845, 968695, 1466855, 2053597, 10267985, 48045143, 240225715, 336316001, 624586859, 1681580005, 3122934295, 4372108013, 21860540065]

約数ペア:

[(1, 21860540065), (5, 4372108013), (7, 3122934295), (13, 1681580005), (35, 624586859), (65, 336316001), (91, 240225715), (455, 48045143), (2129, 10267985), (10645, 2053597), (14903, 1466855), (22567, 968695), (27677, 789845), (74515, 293371), (112835, 193739), (138385, 157969)]