1891072827

素因数分解:

$3^2\times 7^2\times {\mathrm{4288147}}^1$

素因数の和:4288167

約数の個数: 18

約数和(自身を含む): 3177517668

約数和(自身を除く): 1286444841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4288147, 12864441, 30017029, 38593323, 90051087, 210119203, 270153261, 630357609, 1891072827]

約数ペア:

[(1, 1891072827), (3, 630357609), (7, 270153261), (9, 210119203), (21, 90051087), (49, 38593323), (63, 30017029), (147, 12864441), (441, 4288147)]