26978745

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{439}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 45999360

約数和(自身を除く): 19020615

約数列:

[1, 3, 5, 15, 17, 51, 85, 241, 255, 439, 723, 1205, 1317, 2195, 3615, 4097, 6585, 7463, 12291, 20485, 22389, 37315, 61455, 105799, 111945, 317397, 528995, 1586985, 1798583, 5395749, 8992915, 26978745]

約数ペア:

[(1, 26978745), (3, 8992915), (5, 5395749), (15, 1798583), (17, 1586985), (51, 528995), (85, 317397), (241, 111945), (255, 105799), (439, 61455), (723, 37315), (1205, 22389), (1317, 20485), (2195, 12291), (3615, 7463), (4097, 6585)]