20989332

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 67267200

約数和(自身を除く): 46277868

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 43, 52, 63, 78, 84, 86, 91, 117, 126, 129, 149, 156, 172, 182, 234, 252, 258, 273, 298, 301, 364, 387, 447, 468, 516, 546, 559, 596, 602, 774, 819, 894, 903, 1043, 1092, 1118, 1204, 1341, 1548, 1638, 1677, 1788, 1806, 1937, 2086, 2236, 2682, 2709, 3129, 3276, 3354, 3612, 3874, 3913, 4172, 5031, 5364, 5418, 5811, 6258, 6407, 6708, 7748, 7826, 9387, 10062, 10836, 11622, 11739, 12516, 12814, 13559, 15652, 17433, 18774, 19221, 20124, 23244, 23478, 25628, 27118, 34866, 35217, 37548, 38442, 40677, 44849, 46956, 54236, 57663, 69732, 70434, 76884, 81354, 83291, 89698, 115326, 122031, 134547, 140868, 162708, 166582, 179396, 230652, 244062, 249873, 269094, 333164, 403641, 488124, 499746, 538188, 583037, 749619, 807282, 999492, 1166074, 1499238, 1614564, 1749111, 2332148, 2998476, 3498222, 5247333, 6996444, 10494666, 20989332]

約数ペア:

[(1, 20989332), (2, 10494666), (3, 6996444), (4, 5247333), (6, 3498222), (7, 2998476), (9, 2332148), (12, 1749111), (13, 1614564), (14, 1499238), (18, 1166074), (21, 999492), (26, 807282), (28, 749619), (36, 583037), (39, 538188), (42, 499746), (43, 488124), (52, 403641), (63, 333164), (78, 269094), (84, 249873), (86, 244062), (91, 230652), (117, 179396), (126, 166582), (129, 162708), (149, 140868), (156, 134547), (172, 122031), (182, 115326), (234, 89698), (252, 83291), (258, 81354), (273, 76884), (298, 70434), (301, 69732), (364, 57663), (387, 54236), (447, 46956), (468, 44849), (516, 40677), (546, 38442), (559, 37548), (596, 35217), (602, 34866), (774, 27118), (819, 25628), (894, 23478), (903, 23244), (1043, 20124), (1092, 19221), (1118, 18774), (1204, 17433), (1341, 15652), (1548, 13559), (1638, 12814), (1677, 12516), (1788, 11739), (1806, 11622), (1937, 10836), (2086, 10062), (2236, 9387), (2682, 7826), (2709, 7748), (3129, 6708), (3276, 6407), (3354, 6258), (3612, 5811), (3874, 5418), (3913, 5364), (4172, 5031)]