21039298

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{34949}}^1$

素因数の和:35001

約数の個数: 16

約数和(自身を含む): 36907200

約数和(自身を除く): 15867902

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 34949, 69898, 244643, 489286, 1502807, 3005614, 10519649, 21039298]

約数ペア:

[(1, 21039298), (2, 10519649), (7, 3005614), (14, 1502807), (43, 489286), (86, 244643), (301, 69898), (602, 34949)]