20278929

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 31223808

約数和(自身を除く): 10944879

約数列:

[1, 3, 11, 31, 33, 43, 93, 129, 341, 461, 473, 1023, 1333, 1383, 1419, 3999, 5071, 14291, 14663, 15213, 19823, 42873, 43989, 59469, 157201, 218053, 471603, 614513, 654159, 1843539, 6759643, 20278929]

約数ペア:

[(1, 20278929), (3, 6759643), (11, 1843539), (31, 654159), (33, 614513), (43, 471603), (93, 218053), (129, 157201), (341, 59469), (461, 43989), (473, 42873), (1023, 19823), (1333, 15213), (1383, 14663), (1419, 14291), (3999, 5071)]