31401279

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1667}}^1$

素因数の和:1716

約数の個数: 48

約数和(自身を含む): 58286592

約数和(自身を除く): 26885313

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 207, 273, 299, 483, 819, 897, 1449, 1667, 2093, 2691, 5001, 6279, 11669, 15003, 18837, 21671, 35007, 38341, 65013, 105021, 115023, 151697, 195039, 268387, 345069, 455091, 498433, 805161, 1365273, 1495299, 2415483, 3489031, 4485897, 10467093, 31401279]

約数ペア:

[(1, 31401279), (3, 10467093), (7, 4485897), (9, 3489031), (13, 2415483), (21, 1495299), (23, 1365273), (39, 805161), (63, 498433), (69, 455091), (91, 345069), (117, 268387), (161, 195039), (207, 151697), (273, 115023), (299, 105021), (483, 65013), (819, 38341), (897, 35007), (1449, 21671), (1667, 18837), (2093, 15003), (2691, 11669), (5001, 6279)]