20912464

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68791}}^1$

素因数の和:68818

約数の個数: 20

約数和(自身を含む): 42651040

約数和(自身を除く): 21738576

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68791, 137582, 275164, 550328, 1100656, 1307029, 2614058, 5228116, 10456232, 20912464]

約数ペア:

[(1, 20912464), (2, 10456232), (4, 5228116), (8, 2614058), (16, 1307029), (19, 1100656), (38, 550328), (76, 275164), (152, 137582), (304, 68791)]