28391906

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{1117}}^1$

素因数の和:1369

約数の個数: 16

約数和(自身を含む): 43467840

約数和(自身を除く): 15075934

約数列:

[1, 2, 71, 142, 179, 358, 1117, 2234, 12709, 25418, 79307, 158614, 199943, 399886, 14195953, 28391906]

約数ペア:

[(1, 28391906), (2, 14195953), (71, 399886), (142, 199943), (179, 158614), (358, 79307), (1117, 25418), (2234, 12709)]