28870173

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 42996096

約数和(自身を除く): 14125923

約数列:

[1, 3, 9, 47, 131, 141, 393, 423, 521, 1179, 1563, 4689, 6157, 18471, 24487, 55413, 68251, 73461, 204753, 220383, 614259, 3207797, 9623391, 28870173]

約数ペア:

[(1, 28870173), (3, 9623391), (9, 3207797), (47, 614259), (131, 220383), (141, 204753), (393, 73461), (423, 68251), (521, 55413), (1179, 24487), (1563, 18471), (4689, 6157)]