21918967

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3919}}^1$

素因数の和:3990

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 5176073

約数列:

[1, 7, 17, 47, 119, 329, 799, 3919, 5593, 27433, 66623, 184193, 466361, 1289351, 3131281, 21918967]

約数ペア:

[(1, 21918967), (7, 3131281), (17, 1289351), (47, 466361), (119, 184193), (329, 66623), (799, 27433), (3919, 5593)]