21749133

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19541}}^1$

素因数の和:19604

約数の個数: 16

約数和(自身を含む): 33768576

約数和(自身を除く): 12019443

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19541, 58623, 136787, 410361, 1035673, 3107019, 7249711, 21749133]

約数ペア:

[(1, 21749133), (3, 7249711), (7, 3107019), (21, 1035673), (53, 410361), (159, 136787), (371, 58623), (1113, 19541)]