21857337

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:670

約数の個数: 32

約数和(自身を含む): 34402560

約数和(自身を除く): 12545223

約数列:

[1, 3, 9, 23, 27, 61, 69, 183, 207, 549, 577, 621, 1403, 1647, 1731, 4209, 5193, 12627, 13271, 15579, 35197, 37881, 39813, 105591, 119439, 316773, 358317, 809531, 950319, 2428593, 7285779, 21857337]

約数ペア:

[(1, 21857337), (3, 7285779), (9, 2428593), (23, 950319), (27, 809531), (61, 358317), (69, 316773), (183, 119439), (207, 105591), (549, 39813), (577, 37881), (621, 35197), (1403, 15579), (1647, 13271), (1731, 12627), (4209, 5193)]