21914907

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3467}}^1$

素因数の和:3527

約数の個数: 24

約数和(自身を含む): 34790976

約数和(自身を除く): 12876069

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3467, 6321, 10401, 24269, 72807, 149081, 169883, 447243, 509649, 1043567, 3130701, 7304969, 21914907]

約数ペア:

[(1, 21914907), (3, 7304969), (7, 3130701), (21, 1043567), (43, 509649), (49, 447243), (129, 169883), (147, 149081), (301, 72807), (903, 24269), (2107, 10401), (3467, 6321)]