21080605

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{433}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 31497984

約数和(自身を除く): 10417379

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 433, 455, 535, 749, 1391, 2165, 3031, 3745, 5629, 6955, 9737, 15155, 28145, 39403, 46331, 48685, 197015, 231655, 324317, 602303, 1621585, 3011515, 4216121, 21080605]

約数ペア:

[(1, 21080605), (5, 4216121), (7, 3011515), (13, 1621585), (35, 602303), (65, 324317), (91, 231655), (107, 197015), (433, 48685), (455, 46331), (535, 39403), (749, 28145), (1391, 15155), (2165, 9737), (3031, 6955), (3745, 5629)]