21159892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3803}}^1$

素因数の和:3927

約数の個数: 24

約数和(自身を含む): 40261536

約数和(自身を除く): 19101644

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3803, 5564, 7606, 15212, 49439, 98878, 197756, 406921, 813842, 1627684, 5289973, 10579946, 21159892]

約数ペア:

[(1, 21159892), (2, 10579946), (4, 5289973), (13, 1627684), (26, 813842), (52, 406921), (107, 197756), (214, 98878), (428, 49439), (1391, 15212), (2782, 7606), (3803, 5564)]