20121309117

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{199741}}^1$

素因数の和:199811

約数の個数: 64

約数和(自身を含む): 37583454720

約数和(自身を除く): 17462145603

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 41, 63, 91, 117, 123, 189, 273, 287, 351, 369, 533, 819, 861, 1107, 1599, 2457, 2583, 3731, 4797, 7749, 11193, 14391, 33579, 100737, 199741, 599223, 1398187, 1797669, 2596633, 4194561, 5393007, 7789899, 8189381, 12583683, 18176431, 23369697, 24568143, 37751049, 54529293, 57325667, 70109091, 73704429, 106461953, 163587879, 171977001, 221113287, 319385859, 490763637, 515931003, 745233671, 958157577, 1547793009, 2235701013, 2874472731, 6707103039, 20121309117]

約数ペア:

[(1, 20121309117), (3, 6707103039), (7, 2874472731), (9, 2235701013), (13, 1547793009), (21, 958157577), (27, 745233671), (39, 515931003), (41, 490763637), (63, 319385859), (91, 221113287), (117, 171977001), (123, 163587879), (189, 106461953), (273, 73704429), (287, 70109091), (351, 57325667), (369, 54529293), (533, 37751049), (819, 24568143), (861, 23369697), (1107, 18176431), (1599, 12583683), (2457, 8189381), (2583, 7789899), (3731, 5393007), (4797, 4194561), (7749, 2596633), (11193, 1797669), (14391, 1398187), (33579, 599223), (100737, 199741)]