20526723

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1621}}^1$

素因数の和:1704

約数の個数: 32

約数和(自身を含む): 35294720

約数和(自身を除く): 14767997

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1621, 1809, 4221, 4863, 11347, 12663, 14589, 34041, 43767, 102123, 108607, 306369, 325821, 760249, 977463, 2280747, 2932389, 6842241, 20526723]

約数ペア:

[(1, 20526723), (3, 6842241), (7, 2932389), (9, 2280747), (21, 977463), (27, 760249), (63, 325821), (67, 306369), (189, 108607), (201, 102123), (469, 43767), (603, 34041), (1407, 14589), (1621, 12663), (1809, 11347), (4221, 4863)]