17939285

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 8913835

約数列:

[1, 5, 7, 13, 35, 65, 89, 91, 443, 445, 455, 623, 1157, 2215, 3101, 3115, 5759, 5785, 8099, 15505, 28795, 39427, 40313, 40495, 197135, 201565, 275989, 512551, 1379945, 2562755, 3587857, 17939285]

約数ペア:

[(1, 17939285), (5, 3587857), (7, 2562755), (13, 1379945), (35, 512551), (65, 275989), (89, 201565), (91, 197135), (443, 40495), (445, 40313), (455, 39427), (623, 28795), (1157, 15505), (2215, 8099), (3101, 5785), (3115, 5759)]