20814206

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 37171200

約数和(自身を除く): 16356994

約数列:

[1, 2, 7, 14, 31, 62, 199, 217, 241, 398, 434, 482, 1393, 1687, 2786, 3374, 6169, 7471, 12338, 14942, 43183, 47959, 52297, 86366, 95918, 104594, 335713, 671426, 1486729, 2973458, 10407103, 20814206]

約数ペア:

[(1, 20814206), (2, 10407103), (7, 2973458), (14, 1486729), (31, 671426), (62, 335713), (199, 104594), (217, 95918), (241, 86366), (398, 52297), (434, 47959), (482, 43183), (1393, 14942), (1687, 12338), (2786, 7471), (3374, 6169)]