209899422719

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{1721}}^1\times {\mathrm{169159}}^1$

素因数の和:170990

約数の個数: 16

約数和(自身を含む): 242356208640

約数和(自身を除く): 32456785921

約数列:

[1, 7, 103, 721, 1721, 12047, 169159, 177263, 1184113, 1240841, 17423377, 121963639, 291122639, 2037858473, 29985631817, 209899422719]

約数ペア:

[(1, 209899422719), (7, 29985631817), (103, 2037858473), (721, 291122639), (1721, 121963639), (12047, 17423377), (169159, 1240841), (177263, 1184113)]