20187758

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{3923}}^1$

素因数の和:4039

約数の個数: 16

約数和(自身を含む): 31643136

約数和(自身を除く): 11455378

約数列:

[1, 2, 31, 62, 83, 166, 2573, 3923, 5146, 7846, 121613, 243226, 325609, 651218, 10093879, 20187758]

約数ペア:

[(1, 20187758), (2, 10093879), (31, 651218), (62, 325609), (83, 243226), (166, 121613), (2573, 7846), (3923, 5146)]