21000649678

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{5772581}}^1$

素因数の和:5772707

約数の個数: 16

約数和(自身を含む): 33665698224

約数和(自身を除く): 12665048546

約数列:

[1, 2, 17, 34, 107, 214, 1819, 3638, 5772581, 11545162, 98133877, 196267754, 617666167, 1235332334, 10500324839, 21000649678]

約数ペア:

[(1, 21000649678), (2, 10500324839), (17, 1235332334), (34, 617666167), (107, 196267754), (214, 98133877), (1819, 11545162), (3638, 5772581)]