21074902

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{43}}^2\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 24

約数和(自身を含む): 33392520

約数和(自身を除く): 12317618

約数列:

[1, 2, 41, 43, 82, 86, 139, 278, 1763, 1849, 3526, 3698, 5699, 5977, 11398, 11954, 75809, 151618, 245057, 257011, 490114, 514022, 10537451, 21074902]

約数ペア:

[(1, 21074902), (2, 10537451), (41, 514022), (43, 490114), (82, 257011), (86, 245057), (139, 151618), (278, 75809), (1763, 11954), (1849, 11398), (3526, 5977), (3698, 5699)]