21939452

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16981}}^1$

素因数の和:17021

約数の個数: 24

約数和(自身を含む): 42794640

約数和(自身を除く): 20855188

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16981, 33962, 67924, 288677, 322639, 577354, 645278, 1154708, 1290556, 5484863, 10969726, 21939452]

約数ペア:

[(1, 21939452), (2, 10969726), (4, 5484863), (17, 1290556), (19, 1154708), (34, 645278), (38, 577354), (68, 322639), (76, 288677), (323, 67924), (646, 33962), (1292, 16981)]