2781806979

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{610447}}^1$

素因数の和:610495

約数の個数: 24

約数和(自身を含む): 4453828608

約数和(自身を除く): 1672021629

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 610447, 1831341, 4273129, 12819387, 18923857, 29911903, 56771571, 89735709, 132466999, 397400997, 927268993, 2781806979]

約数ペア:

[(1, 2781806979), (3, 927268993), (7, 397400997), (21, 132466999), (31, 89735709), (49, 56771571), (93, 29911903), (147, 18923857), (217, 12819387), (651, 4273129), (1519, 1831341), (4557, 610447)]