21875511

素因数分解:

$3^1\times 7^4\times {\mathrm{3037}}^1$

素因数の和:3068

約数の個数: 20

約数和(自身を含む): 34037752

約数和(自身を除く): 12162241

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 3037, 7203, 9111, 21259, 63777, 148813, 446439, 1041691, 3125073, 7291837, 21875511]

約数ペア:

[(1, 21875511), (3, 7291837), (7, 3125073), (21, 1041691), (49, 446439), (147, 148813), (343, 63777), (1029, 21259), (2401, 9111), (3037, 7203)]