20713590963

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{977}}^1$

素因数の和:1325

約数の個数: 72

約数和(自身を含む): 33168893472

約数和(自身を除く): 12455302509

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 169, 263, 477, 507, 689, 789, 977, 1521, 2067, 2367, 2931, 3419, 6201, 8793, 8957, 10257, 12701, 13939, 26871, 30771, 38103, 41817, 44447, 51781, 80613, 114309, 125451, 133341, 155343, 165113, 181207, 256951, 400023, 466029, 495339, 543621, 673153, 770853, 1486017, 1630863, 2019459, 2312559, 2355691, 3340363, 6058377, 7067073, 8750989, 10021089, 13618403, 21201219, 26252967, 30063267, 40855209, 43424719, 78758901, 122565627, 130274157, 177039239, 390822471, 531117717, 1593353151, 2301510107, 6904530321, 20713590963]

約数ペア:

[(1, 20713590963), (3, 6904530321), (9, 2301510107), (13, 1593353151), (39, 531117717), (53, 390822471), (117, 177039239), (159, 130274157), (169, 122565627), (263, 78758901), (477, 43424719), (507, 40855209), (689, 30063267), (789, 26252967), (977, 21201219), (1521, 13618403), (2067, 10021089), (2367, 8750989), (2931, 7067073), (3419, 6058377), (6201, 3340363), (8793, 2355691), (8957, 2312559), (10257, 2019459), (12701, 1630863), (13939, 1486017), (26871, 770853), (30771, 673153), (38103, 543621), (41817, 495339), (44447, 466029), (51781, 400023), (80613, 256951), (114309, 181207), (125451, 165113), (133341, 155343)]