209901657

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{5501}}^1$

素因数の和:5613

約数の個数: 32

約数和(自身を含む): 338042880

約数和(自身を除く): 128141223

約数列:

[1, 3, 7, 21, 23, 69, 79, 161, 237, 483, 553, 1659, 1817, 5451, 5501, 12719, 16503, 38157, 38507, 115521, 126523, 379569, 434579, 885661, 1303737, 2656983, 3042053, 9126159, 9995317, 29985951, 69967219, 209901657]

約数ペア:

[(1, 209901657), (3, 69967219), (7, 29985951), (21, 9995317), (23, 9126159), (69, 3042053), (79, 2656983), (161, 1303737), (237, 885661), (483, 434579), (553, 379569), (1659, 126523), (1817, 115521), (5451, 38507), (5501, 38157), (12719, 16503)]