9909999

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 16308480

約数和(自身を除く): 6398481

約数列:

[1, 3, 9, 11, 27, 33, 61, 99, 183, 297, 547, 549, 671, 1641, 1647, 2013, 4923, 6017, 6039, 14769, 18051, 18117, 33367, 54153, 100101, 162459, 300303, 367037, 900909, 1101111, 3303333, 9909999]

約数ペア:

[(1, 9909999), (3, 3303333), (9, 1101111), (11, 900909), (27, 367037), (33, 300303), (61, 162459), (99, 100101), (183, 54153), (297, 33367), (547, 18117), (549, 18051), (671, 14769), (1641, 6039), (1647, 6017), (2013, 4923)]