199545759

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{22787}}^1$

素因数の和:22939

約数の個数: 24

約数和(自身を含む): 331793280

約数和(自身を除く): 132247521

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 8757, 22787, 68361, 159509, 205083, 478527, 1435581, 3167393, 9502179, 22171751, 28506537, 66515253, 199545759]

約数ペア:

[(1, 199545759), (3, 66515253), (7, 28506537), (9, 22171751), (21, 9502179), (63, 3167393), (139, 1435581), (417, 478527), (973, 205083), (1251, 159509), (2919, 68361), (8757, 22787)]