21207886

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{97}}^2$

素因数の和:233

約数の個数: 36

約数和(自身を含む): 39016728

約数和(自身を除く): 17808842

約数列:

[1, 2, 7, 14, 23, 46, 49, 97, 98, 161, 194, 322, 679, 1127, 1358, 2231, 2254, 4462, 4753, 9409, 9506, 15617, 18818, 31234, 65863, 109319, 131726, 216407, 218638, 432814, 461041, 922082, 1514849, 3029698, 10603943, 21207886]

約数ペア:

[(1, 21207886), (2, 10603943), (7, 3029698), (14, 1514849), (23, 922082), (46, 461041), (49, 432814), (97, 218638), (98, 216407), (161, 131726), (194, 109319), (322, 65863), (679, 31234), (1127, 18818), (1358, 15617), (2231, 9506), (2254, 9409), (4462, 4753)]