21995501

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^3\times {\mathrm{37}}^1$

素因数の和:110

約数の個数: 24

約数和(自身を含む): 26381880

約数和(自身を除く): 4386379

約数列:

[1, 11, 17, 37, 121, 187, 289, 407, 629, 2057, 3179, 4477, 4913, 6919, 10693, 34969, 54043, 76109, 117623, 181781, 594473, 1293853, 1999591, 21995501]

約数ペア:

[(1, 21995501), (11, 1999591), (17, 1293853), (37, 594473), (121, 181781), (187, 117623), (289, 76109), (407, 54043), (629, 34969), (2057, 10693), (3179, 6919), (4477, 4913)]