1998280221

素因数分解:

$3^1\times 7^2\times {\mathrm{761}}^1\times {\mathrm{17863}}^1$

素因数の和:18641

約数の個数: 24

約数和(自身を含む): 3103619904

約数和(自身を除く): 1105339683

約数列:

[1, 3, 7, 21, 49, 147, 761, 2283, 5327, 15981, 17863, 37289, 53589, 111867, 125041, 375123, 875287, 2625861, 13593743, 40781229, 95156201, 285468603, 666093407, 1998280221]

約数ペア:

[(1, 1998280221), (3, 666093407), (7, 285468603), (21, 95156201), (49, 40781229), (147, 13593743), (761, 2625861), (2283, 875287), (5327, 375123), (15981, 125041), (17863, 111867), (37289, 53589)]