21212829

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{607}}^1$

素因数の和:977

約数の個数: 24

約数和(自身を含む): 33576192

約数和(自身を除く): 12363363

約数列:

[1, 3, 9, 11, 33, 99, 353, 607, 1059, 1821, 3177, 3883, 5463, 6677, 11649, 20031, 34947, 60093, 214271, 642813, 1928439, 2356981, 7070943, 21212829]

約数ペア:

[(1, 21212829), (3, 7070943), (9, 2356981), (11, 1928439), (33, 642813), (99, 214271), (353, 60093), (607, 34947), (1059, 20031), (1821, 11649), (3177, 6677), (3883, 5463)]