280477323

素因数分解:

$3^4\times 7^2\times {\mathrm{70667}}^1$

素因数の和:70693

約数の個数: 30

約数和(自身を含む): 487397196

約数和(自身を除く): 206919873

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 70667, 212001, 494669, 636003, 1484007, 1908009, 3462683, 4452021, 5724027, 10388049, 13356063, 31164147, 40068189, 93492441, 280477323]

約数ペア:

[(1, 280477323), (3, 93492441), (7, 40068189), (9, 31164147), (21, 13356063), (27, 10388049), (49, 5724027), (63, 4452021), (81, 3462683), (147, 1908009), (189, 1484007), (441, 636003), (567, 494669), (1323, 212001), (3969, 70667)]