21028286

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{10139}}^1$

素因数の和:10219

約数の個数: 16

約数和(自身を含む): 33948720

約数和(自身を除く): 12920434

約数列:

[1, 2, 17, 34, 61, 122, 1037, 2074, 10139, 20278, 172363, 344726, 618479, 1236958, 10514143, 21028286]

約数ペア:

[(1, 21028286), (2, 10514143), (17, 1236958), (34, 618479), (61, 344726), (122, 172363), (1037, 20278), (2074, 10139)]