1990202361

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{62473}}^1$

素因数の和:62561

約数の個数: 32

約数和(自身を含む): 3190672128

約数和(自身を除く): 1200469767

約数列:

[1, 3, 7, 21, 37, 41, 111, 123, 259, 287, 777, 861, 1517, 4551, 10619, 31857, 62473, 187419, 437311, 1311933, 2311501, 2561393, 6934503, 7684179, 16180507, 17929751, 48541521, 53789253, 94771541, 284314623, 663400787, 1990202361]

約数ペア:

[(1, 1990202361), (3, 663400787), (7, 284314623), (21, 94771541), (37, 53789253), (41, 48541521), (111, 17929751), (123, 16180507), (259, 7684179), (287, 6934503), (777, 2561393), (861, 2311501), (1517, 1311933), (4551, 437311), (10619, 187419), (31857, 62473)]