51639507

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{383}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 76197888

約数和(自身を除く): 24558381

約数列:

[1, 3, 9, 71, 211, 213, 383, 633, 639, 1149, 1899, 3447, 14981, 27193, 44943, 80813, 81579, 134829, 242439, 244737, 727317, 5737723, 17213169, 51639507]

約数ペア:

[(1, 51639507), (3, 17213169), (9, 5737723), (71, 727317), (211, 244737), (213, 242439), (383, 134829), (633, 81579), (639, 80813), (1149, 44943), (1899, 27193), (3447, 14981)]