21212394

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3137}}^1$

素因数の和:3179

約数の個数: 48

約数和(自身を含む): 51513408

約数和(自身を除く): 30301014

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 49, 69, 98, 138, 147, 161, 294, 322, 483, 966, 1127, 2254, 3137, 3381, 6274, 6762, 9411, 18822, 21959, 43918, 65877, 72151, 131754, 144302, 153713, 216453, 307426, 432906, 461139, 505057, 922278, 1010114, 1515171, 3030342, 3535399, 7070798, 10606197, 21212394]

約数ペア:

[(1, 21212394), (2, 10606197), (3, 7070798), (6, 3535399), (7, 3030342), (14, 1515171), (21, 1010114), (23, 922278), (42, 505057), (46, 461139), (49, 432906), (69, 307426), (98, 216453), (138, 153713), (147, 144302), (161, 131754), (294, 72151), (322, 65877), (483, 43918), (966, 21959), (1127, 18822), (2254, 9411), (3137, 6762), (3381, 6274)]