21257048

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1307}}^1$

素因数の和:1439

約数の個数: 32

約数和(自身を含む): 42379200

約数和(自身を除く): 21122152

約数列:

[1, 2, 4, 8, 19, 38, 76, 107, 152, 214, 428, 856, 1307, 2033, 2614, 4066, 5228, 8132, 10456, 16264, 24833, 49666, 99332, 139849, 198664, 279698, 559396, 1118792, 2657131, 5314262, 10628524, 21257048]

約数ペア:

[(1, 21257048), (2, 10628524), (4, 5314262), (8, 2657131), (19, 1118792), (38, 559396), (76, 279698), (107, 198664), (152, 139849), (214, 99332), (428, 49666), (856, 24833), (1307, 16264), (2033, 10456), (2614, 8132), (4066, 5228)]