20958812

素因数分解:

$2^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{3919}}^1$

素因数の和:4121

約数の個数: 24

約数和(自身を含む): 42147840

約数和(自身を除く): 21189028

約数列:

[1, 2, 4, 7, 14, 28, 191, 382, 764, 1337, 2674, 3919, 5348, 7838, 15676, 27433, 54866, 109732, 748529, 1497058, 2994116, 5239703, 10479406, 20958812]

約数ペア:

[(1, 20958812), (2, 10479406), (4, 5239703), (7, 2994116), (14, 1497058), (28, 748529), (191, 109732), (382, 54866), (764, 27433), (1337, 15676), (2674, 7838), (3919, 5348)]