31730127

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2063

約数の個数: 32

約数和(自身を含む): 51072000

約数和(自身を除く): 19341873

約数列:

[1, 3, 11, 13, 33, 37, 39, 111, 143, 407, 429, 481, 1221, 1443, 1999, 5291, 5997, 15873, 21989, 25987, 65967, 73963, 77961, 221889, 285857, 813593, 857571, 961519, 2440779, 2884557, 10576709, 31730127]

約数ペア:

[(1, 31730127), (3, 10576709), (11, 2884557), (13, 2440779), (33, 961519), (37, 857571), (39, 813593), (111, 285857), (143, 221889), (407, 77961), (429, 73963), (481, 65967), (1221, 25987), (1443, 21989), (1999, 15873), (5291, 5997)]