21043854

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{967}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 52039680

約数和(自身を除く): 30995826

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 78, 93, 117, 186, 234, 279, 351, 403, 558, 702, 806, 837, 967, 1209, 1674, 1934, 2418, 2901, 3627, 5802, 7254, 8703, 10881, 12571, 17406, 21762, 25142, 26109, 29977, 37713, 52218, 59954, 75426, 89931, 113139, 179862, 226278, 269793, 339417, 389701, 539586, 678834, 779402, 809379, 1169103, 1618758, 2338206, 3507309, 7014618, 10521927, 21043854]

約数ペア:

[(1, 21043854), (2, 10521927), (3, 7014618), (6, 3507309), (9, 2338206), (13, 1618758), (18, 1169103), (26, 809379), (27, 779402), (31, 678834), (39, 539586), (54, 389701), (62, 339417), (78, 269793), (93, 226278), (117, 179862), (186, 113139), (234, 89931), (279, 75426), (351, 59954), (403, 52218), (558, 37713), (702, 29977), (806, 26109), (837, 25142), (967, 21762), (1209, 17406), (1674, 12571), (1934, 10881), (2418, 8703), (2901, 7254), (3627, 5802)]