208051907

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{2551}}^1$

素因数の和:2810

約数の個数: 16

約数和(自身を含む): 243032064

約数和(自身を除く): 34980157

約数列:

[1, 7, 61, 191, 427, 1337, 2551, 11651, 17857, 81557, 155611, 487241, 1089277, 3410687, 29721701, 208051907]

約数ペア:

[(1, 208051907), (7, 29721701), (61, 3410687), (191, 1089277), (427, 487241), (1337, 155611), (2551, 81557), (11651, 17857)]