19666955

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2221}}^1$

素因数の和:2267

約数の個数: 32

約数和(自身を含む): 30716928

約数和(自身を除く): 11049973

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2221, 8855, 11105, 15547, 24431, 51083, 77735, 122155, 171017, 255415, 357581, 561913, 855085, 1787905, 2809565, 3933391, 19666955]

約数ペア:

[(1, 19666955), (5, 3933391), (7, 2809565), (11, 1787905), (23, 855085), (35, 561913), (55, 357581), (77, 255415), (115, 171017), (161, 122155), (253, 77735), (385, 51083), (805, 24431), (1265, 15547), (1771, 11105), (2221, 8855)]