261330223

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{3163}}^1$

素因数の和:3247

約数の個数: 32

約数和(自身を含む): 346268160

約数和(自身を除く): 84937937

約数列:

[1, 7, 11, 29, 37, 77, 203, 259, 319, 407, 1073, 2233, 2849, 3163, 7511, 11803, 22141, 34793, 82621, 91727, 117031, 243551, 642089, 819217, 1008997, 1287341, 3393899, 7062979, 9011387, 23757293, 37332889, 261330223]

約数ペア:

[(1, 261330223), (7, 37332889), (11, 23757293), (29, 9011387), (37, 7062979), (77, 3393899), (203, 1287341), (259, 1008997), (319, 819217), (407, 642089), (1073, 243551), (2233, 117031), (2849, 91727), (3163, 82621), (7511, 34793), (11803, 22141)]