21096873

素因数分解:

$3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1303}}^1$

素因数の和:1573

約数の個数: 24

約数和(自身を含む): 34988928

約数和(自身を除く): 13892055

約数列:

[1, 3, 7, 9, 21, 63, 257, 771, 1303, 1799, 2313, 3909, 5397, 9121, 11727, 16191, 27363, 82089, 334871, 1004613, 2344097, 3013839, 7032291, 21096873]

約数ペア:

[(1, 21096873), (3, 7032291), (7, 3013839), (9, 2344097), (21, 1004613), (63, 334871), (257, 82089), (771, 27363), (1303, 16191), (1799, 11727), (2313, 9121), (3909, 5397)]