20199298889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1\times {\mathrm{8273}}^1$

素因数の和:9185

約数の個数: 32

約数和(自身を含む): 25897487616

約数和(自身を除く): 5698188727

約数列:

[1, 7, 11, 37, 77, 259, 407, 857, 2849, 5999, 8273, 9427, 31709, 57911, 65989, 91003, 221963, 306101, 348799, 637021, 2142707, 2441593, 3367111, 7089961, 23569777, 49629727, 77989571, 262328557, 545926997, 1836299899, 2885614127, 20199298889]

約数ペア:

[(1, 20199298889), (7, 2885614127), (11, 1836299899), (37, 545926997), (77, 262328557), (259, 77989571), (407, 49629727), (857, 23569777), (2849, 7089961), (5999, 3367111), (8273, 2441593), (9427, 2142707), (31709, 637021), (57911, 348799), (65989, 306101), (91003, 221963)]