1989935402

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{21737}}^1$

素因数の和:22262

約数の個数: 32

約数和(自身を含む): 3681199872

約数和(自身を除く): 1691264470

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 503, 1006, 3521, 6539, 7042, 13078, 21737, 43474, 45773, 91546, 152159, 282581, 304318, 565162, 1978067, 3956134, 10933711, 21867422, 76535977, 142138243, 153071954, 284276486, 994967701, 1989935402]

約数ペア:

[(1, 1989935402), (2, 994967701), (7, 284276486), (13, 153071954), (14, 142138243), (26, 76535977), (91, 21867422), (182, 10933711), (503, 3956134), (1006, 1978067), (3521, 565162), (6539, 304318), (7042, 282581), (13078, 152159), (21737, 91546), (43474, 45773)]