1221109565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{42407}}^1$

素因数の和:42868

約数の個数: 16

約数和(自身を含む): 1581648768

約数和(自身を除く): 360539203

約数列:

[1, 5, 13, 65, 443, 2215, 5759, 28795, 42407, 212035, 551291, 2756455, 18786301, 93931505, 244221913, 1221109565]

約数ペア:

[(1, 1221109565), (5, 244221913), (13, 93931505), (65, 18786301), (443, 2756455), (2215, 551291), (5759, 212035), (28795, 42407)]