21166691

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1427}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 26229504

約数和(自身を除く): 5062813

約数列:

[1, 7, 13, 91, 163, 1141, 1427, 2119, 9989, 14833, 18551, 129857, 232601, 1628207, 3023813, 21166691]

約数ペア:

[(1, 21166691), (7, 3023813), (13, 1628207), (91, 232601), (163, 129857), (1141, 18551), (1427, 14833), (2119, 9989)]