2639949

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 3935232

約数和(自身を除く): 1295283

約数列:

[1, 3, 13, 39, 41, 123, 127, 169, 381, 507, 533, 1599, 1651, 4953, 5207, 6929, 15621, 20787, 21463, 64389, 67691, 203073, 879983, 2639949]

約数ペア:

[(1, 2639949), (3, 879983), (13, 203073), (39, 67691), (41, 64389), (123, 21463), (127, 20787), (169, 15621), (381, 6929), (507, 5207), (533, 4953), (1599, 1651)]