21953018

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2054

約数の個数: 24

約数和(自身を含む): 36840000

約数和(自身を除く): 14886982

約数列:

[1, 2, 17, 19, 34, 38, 289, 323, 578, 646, 1999, 3998, 5491, 10982, 33983, 37981, 67966, 75962, 577711, 645677, 1155422, 1291354, 10976509, 21953018]

約数ペア:

[(1, 21953018), (2, 10976509), (17, 1291354), (19, 1155422), (34, 645677), (38, 577711), (289, 75962), (323, 67966), (578, 37981), (646, 33983), (1999, 10982), (3998, 5491)]