20437587

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1$

素因数の和:224

約数の個数: 36

約数和(自身を含む): 32530680

約数和(自身を除く): 12093093

約数列:

[1, 3, 9, 17, 31, 51, 93, 139, 153, 279, 417, 527, 961, 1251, 1581, 2363, 2883, 4309, 4743, 7089, 8649, 12927, 16337, 21267, 38781, 49011, 73253, 133579, 147033, 219759, 400737, 659277, 1202211, 2270843, 6812529, 20437587]

約数ペア:

[(1, 20437587), (3, 6812529), (9, 2270843), (17, 1202211), (31, 659277), (51, 400737), (93, 219759), (139, 147033), (153, 133579), (279, 73253), (417, 49011), (527, 38781), (961, 21267), (1251, 16337), (1581, 12927), (2363, 8649), (2883, 7089), (4309, 4743)]