21969164

素因数分解:

$2^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{2017}}^1$

素因数の和:2417

約数の個数: 24

約数和(自身を含む): 44073120

約数和(自身を除く): 22103956

約数列:

[1, 2, 4, 7, 14, 28, 389, 778, 1556, 2017, 2723, 4034, 5446, 8068, 10892, 14119, 28238, 56476, 784613, 1569226, 3138452, 5492291, 10984582, 21969164]

約数ペア:

[(1, 21969164), (2, 10984582), (4, 5492291), (7, 3138452), (14, 1569226), (28, 784613), (389, 56476), (778, 28238), (1556, 14119), (2017, 10892), (2723, 8068), (4034, 5446)]