20994898

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 13997102

約数列:

[1, 2, 17, 29, 34, 58, 107, 199, 214, 398, 493, 986, 1819, 3103, 3383, 3638, 5771, 6206, 6766, 11542, 21293, 42586, 52751, 98107, 105502, 196214, 361981, 617497, 723962, 1234994, 10497449, 20994898]

約数ペア:

[(1, 20994898), (2, 10497449), (17, 1234994), (29, 723962), (34, 617497), (58, 361981), (107, 196214), (199, 105502), (214, 98107), (398, 52751), (493, 42586), (986, 21293), (1819, 11542), (3103, 6766), (3383, 6206), (3638, 5771)]