21966448

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 52496640

約数和(自身を除く): 30530192

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 83, 112, 119, 136, 139, 166, 238, 272, 278, 332, 476, 556, 581, 664, 952, 973, 1112, 1162, 1328, 1411, 1904, 1946, 2224, 2324, 2363, 2822, 3892, 4648, 4726, 5644, 7784, 9296, 9452, 9877, 11288, 11537, 15568, 16541, 18904, 19754, 22576, 23074, 33082, 37808, 39508, 46148, 66164, 79016, 80759, 92296, 132328, 158032, 161518, 184592, 196129, 264656, 323036, 392258, 646072, 784516, 1292144, 1372903, 1569032, 2745806, 3138064, 5491612, 10983224, 21966448]

約数ペア:

[(1, 21966448), (2, 10983224), (4, 5491612), (7, 3138064), (8, 2745806), (14, 1569032), (16, 1372903), (17, 1292144), (28, 784516), (34, 646072), (56, 392258), (68, 323036), (83, 264656), (112, 196129), (119, 184592), (136, 161518), (139, 158032), (166, 132328), (238, 92296), (272, 80759), (278, 79016), (332, 66164), (476, 46148), (556, 39508), (581, 37808), (664, 33082), (952, 23074), (973, 22576), (1112, 19754), (1162, 18904), (1328, 16541), (1411, 15568), (1904, 11537), (1946, 11288), (2224, 9877), (2324, 9452), (2363, 9296), (2822, 7784), (3892, 5644), (4648, 4726)]