19515628

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6247}}^1$

素因数の和:6333

約数の個数: 24

約数和(自身を含む): 37787904

約数和(自身を除く): 18272276

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6247, 12494, 24988, 68717, 137434, 274868, 443537, 887074, 1774148, 4878907, 9757814, 19515628]

約数ペア:

[(1, 19515628), (2, 9757814), (4, 4878907), (11, 1774148), (22, 887074), (44, 443537), (71, 274868), (142, 137434), (284, 68717), (781, 24988), (1562, 12494), (3124, 6247)]