21894724

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{743}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 17477756

約数列:

[1, 2, 4, 53, 106, 139, 212, 278, 556, 743, 1486, 2972, 7367, 14734, 29468, 39379, 78758, 103277, 157516, 206554, 413108, 5473681, 10947362, 21894724]

約数ペア:

[(1, 21894724), (2, 10947362), (4, 5473681), (53, 413108), (106, 206554), (139, 157516), (212, 103277), (278, 78758), (556, 39379), (743, 29468), (1486, 14734), (2972, 7367)]