12721527

素因数分解:

$3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 23150400

約数和(自身を除く): 10428873

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 317, 343, 441, 637, 819, 951, 1029, 1911, 2219, 2853, 3087, 4121, 4459, 5733, 6657, 12363, 13377, 15533, 19971, 28847, 37089, 40131, 46599, 86541, 108731, 139797, 201929, 259623, 326193, 605787, 978579, 1413503, 1817361, 4240509, 12721527]

約数ペア:

[(1, 12721527), (3, 4240509), (7, 1817361), (9, 1413503), (13, 978579), (21, 605787), (39, 326193), (49, 259623), (63, 201929), (91, 139797), (117, 108731), (147, 86541), (273, 46599), (317, 40131), (343, 37089), (441, 28847), (637, 19971), (819, 15533), (951, 13377), (1029, 12363), (1911, 6657), (2219, 5733), (2853, 4459), (3087, 4121)]