81903951

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 120367104

約数和(自身を除く): 38463153

約数列:

[1, 3, 9, 127, 131, 381, 393, 547, 1143, 1179, 1641, 4923, 16637, 49911, 69469, 71657, 149733, 208407, 214971, 625221, 644913, 9100439, 27301317, 81903951]

約数ペア:

[(1, 81903951), (3, 27301317), (9, 9100439), (127, 644913), (131, 625221), (381, 214971), (393, 208407), (547, 149733), (1143, 71657), (1179, 69469), (1641, 49911), (4923, 16637)]