20640492

素因数分解:

$2^2\times 3^2\times {\mathrm{151}}^1\times {\mathrm{3797}}^1$

素因数の和:3958

約数の個数: 36

約数和(自身を含む): 52533936

約数和(自身を除く): 31893444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 151, 302, 453, 604, 906, 1359, 1812, 2718, 3797, 5436, 7594, 11391, 15188, 22782, 34173, 45564, 68346, 136692, 573347, 1146694, 1720041, 2293388, 3440082, 5160123, 6880164, 10320246, 20640492]

約数ペア:

[(1, 20640492), (2, 10320246), (3, 6880164), (4, 5160123), (6, 3440082), (9, 2293388), (12, 1720041), (18, 1146694), (36, 573347), (151, 136692), (302, 68346), (453, 45564), (604, 34173), (906, 22782), (1359, 15188), (1812, 11391), (2718, 7594), (3797, 5436)]