21114928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69457}}^1$

素因数の和:69484

約数の個数: 20

約数和(自身を含む): 43063960

約数和(自身を除く): 21949032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69457, 138914, 277828, 555656, 1111312, 1319683, 2639366, 5278732, 10557464, 21114928]

約数ペア:

[(1, 21114928), (2, 10557464), (4, 5278732), (8, 2639366), (16, 1319683), (19, 1111312), (38, 555656), (76, 277828), (152, 138914), (304, 69457)]