131565861

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109913}}^1$

素因数の和:109945

約数の個数: 24

約数和(自身を含む): 228621120

約数和(自身を除く): 97055259

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 109913, 329739, 769391, 989217, 2088347, 2308173, 6265041, 6924519, 14618429, 18795123, 43855287, 131565861]

約数ペア:

[(1, 131565861), (3, 43855287), (7, 18795123), (9, 14618429), (19, 6924519), (21, 6265041), (57, 2308173), (63, 2088347), (133, 989217), (171, 769391), (399, 329739), (1197, 109913)]