21376052257

素因数分解:

$7^1\times {\mathrm{311}}^1\times {\mathrm{2221}}^1\times {\mathrm{4421}}^1$

素因数の和:6960

約数の個数: 16

約数和(自身を含む): 24524907264

約数和(自身を除く): 3148855007

約数列:

[1, 7, 311, 2177, 2221, 4421, 15547, 30947, 690731, 1374931, 4835117, 9624517, 9819041, 68733287, 3053721751, 21376052257]

約数ペア:

[(1, 21376052257), (7, 3053721751), (311, 68733287), (2177, 9819041), (2221, 9624517), (4421, 4835117), (15547, 1374931), (30947, 690731)]