13978268

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 25225200

約数和(自身を除く): 11246932

約数列:

[1, 2, 4, 43, 86, 172, 181, 362, 449, 724, 898, 1796, 7783, 15566, 19307, 31132, 38614, 77228, 81269, 162538, 325076, 3494567, 6989134, 13978268]

約数ペア:

[(1, 13978268), (2, 6989134), (4, 3494567), (43, 325076), (86, 162538), (172, 81269), (181, 77228), (362, 38614), (449, 31132), (724, 19307), (898, 15566), (1796, 7783)]