21642842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14645158

約数列:

[1, 2, 13, 26, 47, 89, 94, 178, 199, 398, 611, 1157, 1222, 2314, 2587, 4183, 5174, 8366, 9353, 17711, 18706, 35422, 54379, 108758, 121589, 230243, 243178, 460486, 832417, 1664834, 10821421, 21642842]

約数ペア:

[(1, 21642842), (2, 10821421), (13, 1664834), (26, 832417), (47, 460486), (89, 243178), (94, 230243), (178, 121589), (199, 108758), (398, 54379), (611, 35422), (1157, 18706), (1222, 17711), (2314, 9353), (2587, 8366), (4183, 5174)]