21276998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{409}}^1$

素因数の和:504

約数の個数: 24

約数和(自身を含む): 34612200

約数和(自身を除く): 13335202

約数列:

[1, 2, 19, 37, 38, 74, 409, 703, 818, 1369, 1406, 2738, 7771, 15133, 15542, 26011, 30266, 52022, 287527, 559921, 575054, 1119842, 10638499, 21276998]

約数ペア:

[(1, 21276998), (2, 10638499), (19, 1119842), (37, 575054), (38, 559921), (74, 287527), (409, 52022), (703, 30266), (818, 26011), (1369, 15542), (1406, 15133), (2738, 7771)]