2016989991

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1110

約数の個数: 80

約数和(自身を含む): 3343665600

約数和(自身を除く): 1326675609

約数列:

[1, 3, 9, 23, 27, 29, 37, 69, 81, 87, 111, 207, 261, 333, 621, 667, 783, 851, 999, 1009, 1073, 1863, 2001, 2349, 2553, 2997, 3027, 3219, 6003, 7659, 9081, 9657, 18009, 22977, 23207, 24679, 27243, 28971, 29261, 37333, 54027, 68931, 69621, 74037, 81729, 86913, 87783, 111999, 208863, 222111, 263349, 335997, 626589, 666333, 673003, 790047, 858659, 1007991, 1082657, 1879767, 1998999, 2019009, 2370141, 2575977, 3023973, 3247971, 6057027, 7727931, 9743913, 18171081, 23183793, 24901111, 29231739, 54513243, 69551379, 74703333, 87695217, 224109999, 672329997, 2016989991]

約数ペア:

[(1, 2016989991), (3, 672329997), (9, 224109999), (23, 87695217), (27, 74703333), (29, 69551379), (37, 54513243), (69, 29231739), (81, 24901111), (87, 23183793), (111, 18171081), (207, 9743913), (261, 7727931), (333, 6057027), (621, 3247971), (667, 3023973), (783, 2575977), (851, 2370141), (999, 2019009), (1009, 1998999), (1073, 1879767), (1863, 1082657), (2001, 1007991), (2349, 858659), (2553, 790047), (2997, 673003), (3027, 666333), (3219, 626589), (6003, 335997), (7659, 263349), (9081, 222111), (9657, 208863), (18009, 111999), (22977, 87783), (23207, 86913), (24679, 81729), (27243, 74037), (28971, 69621), (29261, 68931), (37333, 54027)]