21140757

素因数分解:

$3^5\times {\mathrm{11}}^2\times {\mathrm{719}}^1$

素因数の和:756

約数の個数: 36

約数和(自身を含む): 34856640

約数和(自身を除く): 13715883

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 121, 243, 297, 363, 719, 891, 1089, 2157, 2673, 3267, 6471, 7909, 9801, 19413, 23727, 29403, 58239, 71181, 86999, 174717, 213543, 260997, 640629, 782991, 1921887, 2348973, 7046919, 21140757]

約数ペア:

[(1, 21140757), (3, 7046919), (9, 2348973), (11, 1921887), (27, 782991), (33, 640629), (81, 260997), (99, 213543), (121, 174717), (243, 86999), (297, 71181), (363, 58239), (719, 29403), (891, 23727), (1089, 19413), (2157, 9801), (2673, 7909), (3267, 6471)]