21510172

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{1439}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 39070080

約数和(自身を除く): 17559908

約数列:

[1, 2, 4, 37, 74, 101, 148, 202, 404, 1439, 2878, 3737, 5756, 7474, 14948, 53243, 106486, 145339, 212972, 290678, 581356, 5377543, 10755086, 21510172]

約数ペア:

[(1, 21510172), (2, 10755086), (4, 5377543), (37, 581356), (74, 290678), (101, 212972), (148, 145339), (202, 106486), (404, 53243), (1439, 14948), (2878, 7474), (3737, 5756)]