21257514

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{547}}^1$

素因数の和:699

約数の個数: 48

約数和(自身を含む): 49241088

約数和(自身を除く): 27983574

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 127, 153, 254, 306, 381, 547, 762, 1094, 1143, 1641, 2159, 2286, 3282, 4318, 4923, 6477, 9299, 9846, 12954, 18598, 19431, 27897, 38862, 55794, 69469, 83691, 138938, 167382, 208407, 416814, 625221, 1180973, 1250442, 2361946, 3542919, 7085838, 10628757, 21257514]

約数ペア:

[(1, 21257514), (2, 10628757), (3, 7085838), (6, 3542919), (9, 2361946), (17, 1250442), (18, 1180973), (34, 625221), (51, 416814), (102, 208407), (127, 167382), (153, 138938), (254, 83691), (306, 69469), (381, 55794), (547, 38862), (762, 27897), (1094, 19431), (1143, 18598), (1641, 12954), (2159, 9846), (2286, 9299), (3282, 6477), (4318, 4923)]