18181779

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2539}}^1$

素因数の和:2591

約数の個数: 32

約数和(自身を含む): 31211520

約数和(自身を除く): 13029741

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2539, 7161, 7617, 17773, 27929, 53319, 78709, 83787, 195503, 236127, 550963, 586509, 865799, 1652889, 2597397, 6060593, 18181779]

約数ペア:

[(1, 18181779), (3, 6060593), (7, 2597397), (11, 1652889), (21, 865799), (31, 586509), (33, 550963), (77, 236127), (93, 195503), (217, 83787), (231, 78709), (341, 53319), (651, 27929), (1023, 17773), (2387, 7617), (2539, 7161)]