21055952

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69263}}^1$

素因数の和:69290

約数の個数: 20

約数和(自身を含む): 42943680

約数和(自身を除く): 21887728

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69263, 138526, 277052, 554104, 1108208, 1315997, 2631994, 5263988, 10527976, 21055952]

約数ペア:

[(1, 21055952), (2, 10527976), (4, 5263988), (8, 2631994), (16, 1315997), (19, 1108208), (38, 554104), (76, 277052), (152, 138526), (304, 69263)]