21804723

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4397}}^1$

素因数の和:4451

約数の個数: 24

約数和(自身を含む): 34304400

約数和(自身を除く): 12499677

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4397, 4959, 13191, 39573, 83543, 127513, 250629, 382539, 751887, 1147617, 2422747, 7268241, 21804723]

約数ペア:

[(1, 21804723), (3, 7268241), (9, 2422747), (19, 1147617), (29, 751887), (57, 382539), (87, 250629), (171, 127513), (261, 83543), (551, 39573), (1653, 13191), (4397, 4959)]