221990472

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:424

約数の個数: 144

約数和(自身を含む): 670990320

約数和(自身を除く): 448999848

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 83, 88, 99, 121, 132, 166, 198, 242, 249, 264, 307, 332, 363, 396, 484, 498, 614, 664, 726, 747, 792, 913, 921, 968, 996, 1089, 1228, 1452, 1494, 1826, 1842, 1992, 2178, 2456, 2739, 2763, 2904, 2988, 3377, 3652, 3684, 4356, 5478, 5526, 5976, 6754, 7304, 7368, 8217, 8712, 10043, 10131, 10956, 11052, 13508, 16434, 20086, 20262, 21912, 22104, 25481, 27016, 30129, 30393, 32868, 37147, 40172, 40524, 50962, 60258, 60786, 65736, 74294, 76443, 80344, 81048, 90387, 101924, 111441, 120516, 121572, 148588, 152886, 180774, 203848, 222882, 229329, 241032, 243144, 280291, 297176, 305772, 334323, 361548, 445764, 458658, 560582, 611544, 668646, 723096, 840873, 891528, 917316, 1121164, 1337292, 1681746, 1834632, 2242328, 2522619, 2674584, 3083201, 3363492, 5045238, 6166402, 6726984, 9249603, 10090476, 12332804, 18499206, 20180952, 24665608, 27748809, 36998412, 55497618, 73996824, 110995236, 221990472]

約数ペア:

[(1, 221990472), (2, 110995236), (3, 73996824), (4, 55497618), (6, 36998412), (8, 27748809), (9, 24665608), (11, 20180952), (12, 18499206), (18, 12332804), (22, 10090476), (24, 9249603), (33, 6726984), (36, 6166402), (44, 5045238), (66, 3363492), (72, 3083201), (83, 2674584), (88, 2522619), (99, 2242328), (121, 1834632), (132, 1681746), (166, 1337292), (198, 1121164), (242, 917316), (249, 891528), (264, 840873), (307, 723096), (332, 668646), (363, 611544), (396, 560582), (484, 458658), (498, 445764), (614, 361548), (664, 334323), (726, 305772), (747, 297176), (792, 280291), (913, 243144), (921, 241032), (968, 229329), (996, 222882), (1089, 203848), (1228, 180774), (1452, 152886), (1494, 148588), (1826, 121572), (1842, 120516), (1992, 111441), (2178, 101924), (2456, 90387), (2739, 81048), (2763, 80344), (2904, 76443), (2988, 74294), (3377, 65736), (3652, 60786), (3684, 60258), (4356, 50962), (5478, 40524), (5526, 40172), (5976, 37147), (6754, 32868), (7304, 30393), (7368, 30129), (8217, 27016), (8712, 25481), (10043, 22104), (10131, 21912), (10956, 20262), (11052, 20086), (13508, 16434)]