17191719

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 25489152

約数和(自身を除く): 8297433

約数列:

[1, 3, 9, 73, 137, 191, 219, 411, 573, 657, 1233, 1719, 10001, 13943, 26167, 30003, 41829, 78501, 90009, 125487, 235503, 1910191, 5730573, 17191719]

約数ペア:

[(1, 17191719), (3, 5730573), (9, 1910191), (73, 235503), (137, 125487), (191, 90009), (219, 78501), (411, 41829), (573, 30003), (657, 26167), (1233, 13943), (1719, 10001)]