28239778

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{5437}}^1$

素因数の和:5506

約数の個数: 24

約数和(自身を含む): 50214492

約数和(自身を除く): 21974714

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 5194, 5437, 10874, 38059, 76118, 266413, 288161, 532826, 576322, 2017127, 4034254, 14119889, 28239778]

約数ペア:

[(1, 28239778), (2, 14119889), (7, 4034254), (14, 2017127), (49, 576322), (53, 532826), (98, 288161), (106, 266413), (371, 76118), (742, 38059), (2597, 10874), (5194, 5437)]