20321812

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4871}}^1$

素因数の和:5031

約数の個数: 24

約数和(自身を含む): 40924800

約数和(自身を除く): 20602988

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 4871, 9742, 19484, 34097, 68194, 136388, 725779, 1451558, 2903116, 5080453, 10160906, 20321812]

約数ペア:

[(1, 20321812), (2, 10160906), (4, 5080453), (7, 2903116), (14, 1451558), (28, 725779), (149, 136388), (298, 68194), (596, 34097), (1043, 19484), (2086, 9742), (4172, 4871)]