21969423

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 39064896

約数和(自身を除く): 17095473

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 73, 119, 153, 219, 281, 357, 511, 657, 843, 1071, 1241, 1533, 1967, 2529, 3723, 4599, 4777, 5901, 8687, 11169, 14331, 17703, 20513, 26061, 33439, 42993, 61539, 78183, 100317, 143591, 184617, 300951, 348721, 430773, 1046163, 1292319, 2441047, 3138489, 7323141, 21969423]

約数ペア:

[(1, 21969423), (3, 7323141), (7, 3138489), (9, 2441047), (17, 1292319), (21, 1046163), (51, 430773), (63, 348721), (73, 300951), (119, 184617), (153, 143591), (219, 100317), (281, 78183), (357, 61539), (511, 42993), (657, 33439), (843, 26061), (1071, 20513), (1241, 17703), (1533, 14331), (1967, 11169), (2529, 8687), (3723, 5901), (4599, 4777)]