19488381

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1513

約数の個数: 24

約数和(自身を含む): 29353632

約数和(自身を除く): 9865251

約数列:

[1, 3, 11, 33, 37, 111, 121, 363, 407, 1221, 1451, 4353, 4477, 13431, 15961, 47883, 53687, 161061, 175571, 526713, 590557, 1771671, 6496127, 19488381]

約数ペア:

[(1, 19488381), (3, 6496127), (11, 1771671), (33, 590557), (37, 526713), (111, 175571), (121, 161061), (363, 53687), (407, 47883), (1221, 15961), (1451, 13431), (4353, 4477)]