18719649

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{829}}^1$

素因数の和:1041

約数の個数: 24

約数和(自身を含む): 29305640

約数和(自身を除く): 10585991

約数列:

[1, 3, 9, 13, 39, 117, 193, 579, 829, 1737, 2487, 2509, 7461, 7527, 10777, 22581, 32331, 96993, 159997, 479991, 1439973, 2079961, 6239883, 18719649]

約数ペア:

[(1, 18719649), (3, 6239883), (9, 2079961), (13, 1439973), (39, 479991), (117, 159997), (193, 96993), (579, 32331), (829, 22581), (1737, 10777), (2487, 7527), (2509, 7461)]