21430827

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6983}}^1$

素因数の和:7031

約数の個数: 24

約数和(自身を含む): 34864128

約数和(自身を除く): 13433301

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 1023, 3069, 6983, 20949, 62847, 76813, 216473, 230439, 649419, 691317, 1948257, 2381203, 7143609, 21430827]

約数ペア:

[(1, 21430827), (3, 7143609), (9, 2381203), (11, 1948257), (31, 691317), (33, 649419), (93, 230439), (99, 216473), (279, 76813), (341, 62847), (1023, 20949), (3069, 6983)]