17990587218238

素因数分解:

$2^1\times {\mathrm{641}}^1\times {\mathrm{20219}}^1\times {\mathrm{694061}}^1$

素因数の和:714923

約数の個数: 16

約数和(自身を含む): 27029356190640

約数和(自身を除く): 9038768972402

約数列:

[1, 2, 641, 1282, 20219, 40438, 694061, 1388122, 12960379, 25920758, 444893101, 889786202, 14033219359, 28066438718, 8995293609119, 17990587218238]

約数ペア:

[(1, 17990587218238), (2, 8995293609119), (641, 28066438718), (1282, 14033219359), (20219, 889786202), (40438, 444893101), (694061, 25920758), (1388122, 12960379)]