21475706

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 38009088

約数和(自身を除く): 16533382

約数列:

[1, 2, 7, 14, 53, 103, 106, 206, 281, 371, 562, 721, 742, 1442, 1967, 3934, 5459, 10918, 14893, 28943, 29786, 38213, 57886, 76426, 104251, 202601, 208502, 405202, 1533979, 3067958, 10737853, 21475706]

約数ペア:

[(1, 21475706), (2, 10737853), (7, 3067958), (14, 1533979), (53, 405202), (103, 208502), (106, 202601), (206, 104251), (281, 76426), (371, 57886), (562, 38213), (721, 29786), (742, 28943), (1442, 14893), (1967, 10918), (3934, 5459)]