21664636

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 46063360

約数和(自身を除く): 24398724

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 193, 211, 266, 386, 422, 532, 772, 844, 1351, 1477, 2702, 2954, 3667, 4009, 5404, 5908, 7334, 8018, 14668, 16036, 25669, 28063, 40723, 51338, 56126, 81446, 102676, 112252, 162892, 285061, 570122, 773737, 1140244, 1547474, 3094948, 5416159, 10832318, 21664636]

約数ペア:

[(1, 21664636), (2, 10832318), (4, 5416159), (7, 3094948), (14, 1547474), (19, 1140244), (28, 773737), (38, 570122), (76, 285061), (133, 162892), (193, 112252), (211, 102676), (266, 81446), (386, 56126), (422, 51338), (532, 40723), (772, 28063), (844, 25669), (1351, 16036), (1477, 14668), (2702, 8018), (2954, 7334), (3667, 5908), (4009, 5404)]