2139585

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 4136832

約数和(自身を除く): 1997247

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 49, 71, 105, 123, 147, 205, 213, 245, 287, 355, 497, 615, 735, 861, 1065, 1435, 1491, 2009, 2485, 2911, 3479, 4305, 6027, 7455, 8733, 10045, 10437, 14555, 17395, 20377, 30135, 43665, 52185, 61131, 101885, 142639, 305655, 427917, 713195, 2139585]

約数ペア:

[(1, 2139585), (3, 713195), (5, 427917), (7, 305655), (15, 142639), (21, 101885), (35, 61131), (41, 52185), (49, 43665), (71, 30135), (105, 20377), (123, 17395), (147, 14555), (205, 10437), (213, 10045), (245, 8733), (287, 7455), (355, 6027), (497, 4305), (615, 3479), (735, 2911), (861, 2485), (1065, 2009), (1435, 1491)]