2159181

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 3294720

約数和(自身を除く): 1135539

約数列:

[1, 3, 9, 31, 71, 93, 109, 213, 279, 327, 639, 981, 2201, 3379, 6603, 7739, 10137, 19809, 23217, 30411, 69651, 239909, 719727, 2159181]

約数ペア:

[(1, 2159181), (3, 719727), (9, 239909), (31, 69651), (71, 30411), (93, 23217), (109, 19809), (213, 10137), (279, 7739), (327, 6603), (639, 3379), (981, 2201)]