21177849

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1871}}^1$

素因数の和:1906

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14764551

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 343, 539, 1029, 1617, 1871, 3773, 5613, 11319, 13097, 20581, 39291, 61743, 91679, 144067, 275037, 432201, 641753, 1008469, 1925259, 3025407, 7059283, 21177849]

約数ペア:

[(1, 21177849), (3, 7059283), (7, 3025407), (11, 1925259), (21, 1008469), (33, 641753), (49, 432201), (77, 275037), (147, 144067), (231, 91679), (343, 61743), (539, 39291), (1029, 20581), (1617, 13097), (1871, 11319), (3773, 5613)]