20057541

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 32237568

約数和(自身を除く): 12180027

約数列:

[1, 3, 7, 21, 23, 69, 131, 161, 317, 393, 483, 917, 951, 2219, 2751, 3013, 6657, 7291, 9039, 21091, 21873, 41527, 51037, 63273, 124581, 153111, 290689, 872067, 955121, 2865363, 6685847, 20057541]

約数ペア:

[(1, 20057541), (3, 6685847), (7, 2865363), (21, 955121), (23, 872067), (69, 290689), (131, 153111), (161, 124581), (317, 63273), (393, 51037), (483, 41527), (917, 21873), (951, 21091), (2219, 9039), (2751, 7291), (3013, 6657)]