18803215

素因数分解:

$5^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 24110352

約数和(自身を除く): 5307137

約数列:

[1, 5, 37, 41, 67, 185, 205, 335, 1369, 1517, 2479, 2747, 6845, 7585, 12395, 13735, 56129, 91723, 101639, 280645, 458615, 508195, 3760643, 18803215]

約数ペア:

[(1, 18803215), (5, 3760643), (37, 508195), (41, 458615), (67, 280645), (185, 101639), (205, 91723), (335, 56129), (1369, 13735), (1517, 12395), (2479, 7585), (2747, 6845)]