13291207731

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{8599}}^1$

素因数の和:8781

約数の個数: 64

約数和(自身を含む): 21795840000

約数和(自身を除く): 8504632269

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 131, 171, 207, 393, 437, 513, 621, 1179, 1311, 2489, 3013, 3537, 3933, 7467, 8599, 9039, 11799, 22401, 25797, 27117, 57247, 67203, 77391, 81351, 163381, 171741, 197777, 232173, 490143, 515223, 593331, 1126469, 1470429, 1545669, 1779993, 3379407, 3757763, 4411287, 5339979, 10138221, 11273289, 21402911, 25908787, 30414663, 33819867, 64208733, 77726361, 101459601, 192626199, 233179083, 492266953, 577878597, 699537249, 1476800859, 4430402577, 13291207731]

約数ペア:

[(1, 13291207731), (3, 4430402577), (9, 1476800859), (19, 699537249), (23, 577878597), (27, 492266953), (57, 233179083), (69, 192626199), (131, 101459601), (171, 77726361), (207, 64208733), (393, 33819867), (437, 30414663), (513, 25908787), (621, 21402911), (1179, 11273289), (1311, 10138221), (2489, 5339979), (3013, 4411287), (3537, 3757763), (3933, 3379407), (7467, 1779993), (8599, 1545669), (9039, 1470429), (11799, 1126469), (22401, 593331), (25797, 515223), (27117, 490143), (57247, 232173), (67203, 197777), (77391, 171741), (81351, 163381)]