21757192

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{491}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 20751608

約数列:

[1, 2, 4, 8, 29, 58, 116, 191, 232, 382, 491, 764, 982, 1528, 1964, 3928, 5539, 11078, 14239, 22156, 28478, 44312, 56956, 93781, 113912, 187562, 375124, 750248, 2719649, 5439298, 10878596, 21757192]

約数ペア:

[(1, 21757192), (2, 10878596), (4, 5439298), (8, 2719649), (29, 750248), (58, 375124), (116, 187562), (191, 113912), (232, 93781), (382, 56956), (491, 44312), (764, 28478), (982, 22156), (1528, 14239), (1964, 11078), (3928, 5539)]