21145291285

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{3359}}^1\times {\mathrm{15937}}^1$

素因数の和:19380

約数の個数: 16

約数和(自身を含む): 25704806400

約数和(自身を除く): 4559515115

約数列:

[1, 5, 79, 395, 3359, 15937, 16795, 79685, 265361, 1259023, 1326805, 6295115, 53532383, 267661915, 4229058257, 21145291285]

約数ペア:

[(1, 21145291285), (5, 4229058257), (79, 267661915), (395, 53532383), (3359, 6295115), (15937, 1326805), (16795, 1259023), (79685, 265361)]