18920858

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:710

約数の個数: 32

約数和(自身を含む): 32890752

約数和(自身を除く): 13969894

約数列:

[1, 2, 11, 22, 23, 46, 61, 122, 253, 506, 613, 671, 1226, 1342, 1403, 2806, 6743, 13486, 14099, 15433, 28198, 30866, 37393, 74786, 155089, 310178, 411323, 822646, 860039, 1720078, 9460429, 18920858]

約数ペア:

[(1, 18920858), (2, 9460429), (11, 1720078), (22, 860039), (23, 822646), (46, 411323), (61, 310178), (122, 155089), (253, 74786), (506, 37393), (613, 30866), (671, 28198), (1226, 15433), (1342, 14099), (1403, 13486), (2806, 6743)]