21039722

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{227}}^1\times {\mathrm{383}}^1$

素因数の和:634

約数の個数: 24

約数和(自身を含む): 34933248

約数和(自身を除く): 13893526

約数列:

[1, 2, 11, 22, 121, 227, 242, 383, 454, 766, 2497, 4213, 4994, 8426, 27467, 46343, 54934, 86941, 92686, 173882, 956351, 1912702, 10519861, 21039722]

約数ペア:

[(1, 21039722), (2, 10519861), (11, 1912702), (22, 956351), (121, 173882), (227, 92686), (242, 86941), (383, 54934), (454, 46343), (766, 27467), (2497, 8426), (4213, 4994)]