21174964

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 37925888

約数和(自身を除く): 16750924

約数列:

[1, 2, 4, 73, 127, 146, 254, 292, 508, 571, 1142, 2284, 9271, 18542, 37084, 41683, 72517, 83366, 145034, 166732, 290068, 5293741, 10587482, 21174964]

約数ペア:

[(1, 21174964), (2, 10587482), (4, 5293741), (73, 290068), (127, 166732), (146, 145034), (254, 83366), (292, 72517), (508, 41683), (571, 37084), (1142, 18542), (2284, 9271)]