21494440916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21755507}}^1$

素因数の和:21755543

約数の個数: 24

約数和(自身を含む): 42640795680

約数和(自身を除く): 21146354764

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21755507, 43511014, 87022028, 282821591, 413354633, 565643182, 826709266, 1131286364, 1653418532, 5373610229, 10747220458, 21494440916]

約数ペア:

[(1, 21494440916), (2, 10747220458), (4, 5373610229), (13, 1653418532), (19, 1131286364), (26, 826709266), (38, 565643182), (52, 413354633), (76, 282821591), (247, 87022028), (494, 43511014), (988, 21755507)]