67557777

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 105480192

約数和(自身を除く): 37922415

約数列:

[1, 3, 7, 21, 73, 127, 219, 347, 381, 511, 889, 1041, 1533, 2429, 2667, 7287, 9271, 25331, 27813, 44069, 64897, 75993, 132207, 177317, 194691, 308483, 531951, 925449, 3217037, 9651111, 22519259, 67557777]

約数ペア:

[(1, 67557777), (3, 22519259), (7, 9651111), (21, 3217037), (73, 925449), (127, 531951), (219, 308483), (347, 194691), (381, 177317), (511, 132207), (889, 75993), (1041, 64897), (1533, 44069), (2429, 27813), (2667, 25331), (7287, 9271)]