20975276

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{7417}}^1$

素因数の和:7529

約数の個数: 24

約数和(自身を含む): 42371616

約数和(自身を除く): 21396340

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 404, 707, 1414, 2828, 7417, 14834, 29668, 51919, 103838, 207676, 749117, 1498234, 2996468, 5243819, 10487638, 20975276]

約数ペア:

[(1, 20975276), (2, 10487638), (4, 5243819), (7, 2996468), (14, 1498234), (28, 749117), (101, 207676), (202, 103838), (404, 51919), (707, 29668), (1414, 14834), (2828, 7417)]