20928078

素因数分解:

$2^1\times 3^3\times {\mathrm{73}}^1\times {\mathrm{5309}}^1$

素因数の和:5393

約数の個数: 32

約数和(自身を含む): 47152800

約数和(自身を除く): 26224722

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 146, 219, 438, 657, 1314, 1971, 3942, 5309, 10618, 15927, 31854, 47781, 95562, 143343, 286686, 387557, 775114, 1162671, 2325342, 3488013, 6976026, 10464039, 20928078]

約数ペア:

[(1, 20928078), (2, 10464039), (3, 6976026), (6, 3488013), (9, 2325342), (18, 1162671), (27, 775114), (54, 387557), (73, 286686), (146, 143343), (219, 95562), (438, 47781), (657, 31854), (1314, 15927), (1971, 10618), (3942, 5309)]