91987281

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{139}}^2$

素因数の和:330

約数の個数: 27

約数和(自身を含む): 139905129

約数和(自身を除く): 47917848

約数列:

[1, 3, 9, 23, 69, 139, 207, 417, 529, 1251, 1587, 3197, 4761, 9591, 19321, 28773, 57963, 73531, 173889, 220593, 444383, 661779, 1333149, 3999447, 10220809, 30662427, 91987281]

約数ペア:

[(1, 91987281), (3, 30662427), (9, 10220809), (23, 3999447), (69, 1333149), (139, 661779), (207, 444383), (417, 220593), (529, 173889), (1251, 73531), (1587, 57963), (3197, 28773), (4761, 19321)]