18940683

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 27498240

約数和(自身を除く): 8557557

約数列:

[1, 3, 29, 43, 61, 83, 87, 129, 183, 249, 1247, 1769, 2407, 2623, 3569, 3741, 5063, 5307, 7221, 7869, 10707, 15189, 76067, 103501, 146827, 217709, 228201, 310503, 440481, 653127, 6313561, 18940683]

約数ペア:

[(1, 18940683), (3, 6313561), (29, 653127), (43, 440481), (61, 310503), (83, 228201), (87, 217709), (129, 146827), (183, 103501), (249, 76067), (1247, 15189), (1769, 10707), (2407, 7869), (2623, 7221), (3569, 5307), (3741, 5063)]