21068656

素因数分解:

$2^4\times 7^1\times {\mathrm{313}}^1\times {\mathrm{601}}^1$

素因数の和:929

約数の個数: 40

約数和(自身を含む): 46878944

約数和(自身を除く): 25810288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 313, 601, 626, 1202, 1252, 2191, 2404, 2504, 4207, 4382, 4808, 5008, 8414, 8764, 9616, 16828, 17528, 33656, 35056, 67312, 188113, 376226, 752452, 1316791, 1504904, 2633582, 3009808, 5267164, 10534328, 21068656]

約数ペア:

[(1, 21068656), (2, 10534328), (4, 5267164), (7, 3009808), (8, 2633582), (14, 1504904), (16, 1316791), (28, 752452), (56, 376226), (112, 188113), (313, 67312), (601, 35056), (626, 33656), (1202, 17528), (1252, 16828), (2191, 9616), (2404, 8764), (2504, 8414), (4207, 5008), (4382, 4808)]