21420804963

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1\times {\mathrm{802007}}^1$

素因数の和:802346

約数の個数: 16

約数和(自身を含む): 29642215680

約数和(自身を除く): 8221410717

約数列:

[1, 3, 29, 87, 307, 921, 8903, 26709, 802007, 2406021, 23258203, 69774609, 246216149, 738648447, 7140268321, 21420804963]

約数ペア:

[(1, 21420804963), (3, 7140268321), (29, 738648447), (87, 246216149), (307, 69774609), (921, 23258203), (8903, 2406021), (26709, 802007)]