21409038

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{169913}}^1$

素因数の和:169928

約数の個数: 24

約数和(自身を含む): 53013168

約数和(自身を除く): 31604130

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 169913, 339826, 509739, 1019478, 1189391, 1529217, 2378782, 3058434, 3568173, 7136346, 10704519, 21409038]

約数ペア:

[(1, 21409038), (2, 10704519), (3, 7136346), (6, 3568173), (7, 3058434), (9, 2378782), (14, 1529217), (18, 1189391), (21, 1019478), (42, 509739), (63, 339826), (126, 169913)]