15840813

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 23823360

約数和(自身を除く): 7982547

約数列:

[1, 3, 19, 23, 43, 57, 69, 129, 281, 437, 817, 843, 989, 1311, 2451, 2967, 5339, 6463, 12083, 16017, 18791, 19389, 36249, 56373, 122797, 229577, 277909, 368391, 688731, 833727, 5280271, 15840813]

約数ペア:

[(1, 15840813), (3, 5280271), (19, 833727), (23, 688731), (43, 368391), (57, 277909), (69, 229577), (129, 122797), (281, 56373), (437, 36249), (817, 19389), (843, 18791), (989, 16017), (1311, 12083), (2451, 6463), (2967, 5339)]