215789021

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{463}}^1\times {\mathrm{479}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 249446400

約数和(自身を除く): 33657379

約数列:

[1, 7, 139, 463, 479, 973, 3241, 3353, 64357, 66581, 221777, 450499, 466067, 1552439, 30827003, 215789021]

約数ペア:

[(1, 215789021), (7, 30827003), (139, 1552439), (463, 466067), (479, 450499), (973, 221777), (3241, 66581), (3353, 64357)]