21978020002

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{646412353}}^1$

素因数の和:646412372

約数の個数: 8

約数和(自身を含む): 34906267116

約数和(自身を除く): 12928247114

約数列:

[1, 2, 17, 34, 646412353, 1292824706, 10989010001, 21978020002]

約数ペア:

[(1, 21978020002), (2, 10989010001), (17, 1292824706), (34, 646412353)]