18981185

素因数分解:

$5^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 24312960

約数和(自身を除く): 5331775

約数列:

[1, 5, 37, 47, 59, 185, 235, 295, 1369, 1739, 2183, 2773, 6845, 8695, 10915, 13865, 64343, 80771, 102601, 321715, 403855, 513005, 3796237, 18981185]

約数ペア:

[(1, 18981185), (5, 3796237), (37, 513005), (47, 403855), (59, 321715), (185, 102601), (235, 80771), (295, 64343), (1369, 13865), (1739, 10915), (2183, 8695), (2773, 6845)]