21385876

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{1723}}^1$

素因数の和:1863

約数の個数: 24

約数和(自身を含む): 39100320

約数和(自身を除く): 17714444

約数列:

[1, 2, 4, 29, 58, 107, 116, 214, 428, 1723, 3103, 3446, 6206, 6892, 12412, 49967, 99934, 184361, 199868, 368722, 737444, 5346469, 10692938, 21385876]

約数ペア:

[(1, 21385876), (2, 10692938), (4, 5346469), (29, 737444), (58, 368722), (107, 199868), (116, 184361), (214, 99934), (428, 49967), (1723, 12412), (3103, 6892), (3446, 6206)]