21004576

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 43999200

約数和(自身を除く): 22994624

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 179, 193, 304, 358, 386, 608, 716, 772, 1432, 1544, 2864, 3088, 3401, 3667, 5728, 6176, 6802, 7334, 13604, 14668, 27208, 29336, 34547, 54416, 58672, 69094, 108832, 117344, 138188, 276376, 552752, 656393, 1105504, 1312786, 2625572, 5251144, 10502288, 21004576]

約数ペア:

[(1, 21004576), (2, 10502288), (4, 5251144), (8, 2625572), (16, 1312786), (19, 1105504), (32, 656393), (38, 552752), (76, 276376), (152, 138188), (179, 117344), (193, 108832), (304, 69094), (358, 58672), (386, 54416), (608, 34547), (716, 29336), (772, 27208), (1432, 14668), (1544, 13604), (2864, 7334), (3088, 6802), (3401, 6176), (3667, 5728)]