21255226

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{839}}^1$

素因数の和:1133

約数の個数: 16

約数和(自身を含む): 32659200

約数和(自身を除く): 11403974

約数列:

[1, 2, 53, 106, 239, 478, 839, 1678, 12667, 25334, 44467, 88934, 200521, 401042, 10627613, 21255226]

約数ペア:

[(1, 21255226), (2, 10627613), (53, 401042), (106, 200521), (239, 88934), (478, 44467), (839, 25334), (1678, 12667)]