20761195

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 31030272

約数和(自身を除く): 10269077

約数列:

[1, 5, 7, 13, 35, 65, 91, 103, 443, 455, 515, 721, 1339, 2215, 3101, 3605, 5759, 6695, 9373, 15505, 28795, 40313, 45629, 46865, 201565, 228145, 319403, 593177, 1597015, 2965885, 4152239, 20761195]

約数ペア:

[(1, 20761195), (5, 4152239), (7, 2965885), (13, 1597015), (35, 593177), (65, 319403), (91, 228145), (103, 201565), (443, 46865), (455, 45629), (515, 40313), (721, 28795), (1339, 15505), (2215, 9373), (3101, 6695), (3605, 5759)]