21319474

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2381}}^1$

素因数の和:2442

約数の個数: 24

約数和(自身を含む): 36115884

約数和(自身を除く): 14796410

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 2381, 4477, 4762, 8954, 26191, 52382, 88097, 176194, 288101, 576202, 969067, 1938134, 10659737, 21319474]

約数ペア:

[(1, 21319474), (2, 10659737), (11, 1938134), (22, 969067), (37, 576202), (74, 288101), (121, 176194), (242, 88097), (407, 52382), (814, 26191), (2381, 8954), (4477, 4762)]