21237963

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{2621}}^1$

素因数の和:2734

約数の個数: 16

約数和(自身を含む): 29492256

約数和(自身を除く): 8254293

約数列:

[1, 3, 37, 73, 111, 219, 2621, 2701, 7863, 8103, 96977, 191333, 290931, 573999, 7079321, 21237963]

約数ペア:

[(1, 21237963), (3, 7079321), (37, 573999), (73, 290931), (111, 191333), (219, 96977), (2621, 8103), (2701, 7863)]