13990403

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2843}}^1$

素因数の和:2906

約数の個数: 16

約数和(自身を含む): 17291520

約数和(自身を除く): 3301117

約数列:

[1, 7, 19, 37, 133, 259, 703, 2843, 4921, 19901, 54017, 105191, 378119, 736337, 1998629, 13990403]

約数ペア:

[(1, 13990403), (7, 1998629), (19, 736337), (37, 378119), (133, 105191), (259, 54017), (703, 19901), (2843, 4921)]