25285953

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 45785088

約数和(自身を除く): 20499135

約数列:

[1, 3, 7, 11, 17, 21, 33, 47, 51, 77, 119, 137, 141, 187, 231, 329, 357, 411, 517, 561, 799, 959, 987, 1309, 1507, 1551, 2329, 2397, 2877, 3619, 3927, 4521, 5593, 6439, 6987, 8789, 10549, 10857, 16303, 16779, 19317, 25619, 26367, 31647, 45073, 48909, 61523, 70829, 76857, 109463, 135219, 179333, 184569, 212487, 328389, 495803, 537999, 766241, 1204093, 1487409, 2298723, 3612279, 8428651, 25285953]

約数ペア:

[(1, 25285953), (3, 8428651), (7, 3612279), (11, 2298723), (17, 1487409), (21, 1204093), (33, 766241), (47, 537999), (51, 495803), (77, 328389), (119, 212487), (137, 184569), (141, 179333), (187, 135219), (231, 109463), (329, 76857), (357, 70829), (411, 61523), (517, 48909), (561, 45073), (799, 31647), (959, 26367), (987, 25619), (1309, 19317), (1507, 16779), (1551, 16303), (2329, 10857), (2397, 10549), (2877, 8789), (3619, 6987), (3927, 6439), (4521, 5593)]