21976565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1699}}^1$

素因数の和:1916

約数の個数: 16

約数和(自身を含む): 28560000

約数和(自身を除く): 6583435

約数列:

[1, 5, 13, 65, 199, 995, 1699, 2587, 8495, 12935, 22087, 110435, 338101, 1690505, 4395313, 21976565]

約数ペア:

[(1, 21976565), (5, 4395313), (13, 1690505), (65, 338101), (199, 110435), (995, 22087), (1699, 12935), (2587, 8495)]