21776216

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 128

約数和(自身を含む): 55987200

約数和(自身を除く): 34210984

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 29, 44, 46, 53, 56, 58, 77, 88, 92, 106, 116, 154, 161, 184, 203, 212, 232, 253, 308, 319, 322, 371, 406, 424, 506, 583, 616, 638, 644, 667, 742, 812, 1012, 1166, 1219, 1276, 1288, 1334, 1484, 1537, 1624, 1771, 2024, 2233, 2332, 2438, 2552, 2668, 2968, 3074, 3542, 4081, 4466, 4664, 4669, 4876, 5336, 6148, 7084, 7337, 8162, 8533, 8932, 9338, 9752, 10759, 12296, 13409, 14168, 14674, 16324, 16907, 17066, 17864, 18676, 21518, 26818, 29348, 32648, 33814, 34132, 35351, 37352, 43036, 51359, 53636, 58696, 67628, 68264, 70702, 86072, 93863, 102718, 107272, 118349, 135256, 141404, 187726, 205436, 236698, 247457, 282808, 375452, 388861, 410872, 473396, 494914, 750904, 777722, 946792, 989828, 1555444, 1979656, 2722027, 3110888, 5444054, 10888108, 21776216]

約数ペア:

[(1, 21776216), (2, 10888108), (4, 5444054), (7, 3110888), (8, 2722027), (11, 1979656), (14, 1555444), (22, 989828), (23, 946792), (28, 777722), (29, 750904), (44, 494914), (46, 473396), (53, 410872), (56, 388861), (58, 375452), (77, 282808), (88, 247457), (92, 236698), (106, 205436), (116, 187726), (154, 141404), (161, 135256), (184, 118349), (203, 107272), (212, 102718), (232, 93863), (253, 86072), (308, 70702), (319, 68264), (322, 67628), (371, 58696), (406, 53636), (424, 51359), (506, 43036), (583, 37352), (616, 35351), (638, 34132), (644, 33814), (667, 32648), (742, 29348), (812, 26818), (1012, 21518), (1166, 18676), (1219, 17864), (1276, 17066), (1288, 16907), (1334, 16324), (1484, 14674), (1537, 14168), (1624, 13409), (1771, 12296), (2024, 10759), (2233, 9752), (2332, 9338), (2438, 8932), (2552, 8533), (2668, 8162), (2968, 7337), (3074, 7084), (3542, 6148), (4081, 5336), (4466, 4876), (4664, 4669)]