21138123

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4657}}^1$

素因数の和:4766

約数の個数: 16

約数和(自身を含む): 30183840

約数和(自身を除く): 9045717

約数列:

[1, 3, 17, 51, 89, 267, 1513, 4539, 4657, 13971, 79169, 237507, 414473, 1243419, 7046041, 21138123]

約数ペア:

[(1, 21138123), (3, 7046041), (17, 1243419), (51, 414473), (89, 237507), (267, 79169), (1513, 13971), (4539, 4657)]