18980685

素因数分解:

$3^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{911}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 33007104

約数和(自身を除く): 14026419

約数列:

[1, 3, 5, 9, 15, 45, 463, 911, 1389, 2315, 2733, 4167, 4555, 6945, 8199, 13665, 20835, 40995, 421793, 1265379, 2108965, 3796137, 6326895, 18980685]

約数ペア:

[(1, 18980685), (3, 6326895), (5, 3796137), (9, 2108965), (15, 1265379), (45, 421793), (463, 40995), (911, 20835), (1389, 13665), (2315, 8199), (2733, 6945), (4167, 4555)]