18290778

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{643}}^1$

素因数の和:1090

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 21771174

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 431, 643, 862, 1286, 1293, 1929, 2586, 3858, 4741, 7073, 9482, 14146, 14223, 21219, 28446, 42438, 277133, 554266, 831399, 1662798, 3048463, 6096926, 9145389, 18290778]

約数ペア:

[(1, 18290778), (2, 9145389), (3, 6096926), (6, 3048463), (11, 1662798), (22, 831399), (33, 554266), (66, 277133), (431, 42438), (643, 28446), (862, 21219), (1286, 14223), (1293, 14146), (1929, 9482), (2586, 7073), (3858, 4741)]