18557794

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 30697920

約数和(自身を除く): 12140126

約数列:

[1, 2, 19, 37, 38, 67, 74, 134, 197, 394, 703, 1273, 1406, 2479, 2546, 3743, 4958, 7289, 7486, 13199, 14578, 26398, 47101, 94202, 138491, 250781, 276982, 488363, 501562, 976726, 9278897, 18557794]

約数ペア:

[(1, 18557794), (2, 9278897), (19, 976726), (37, 501562), (38, 488363), (67, 276982), (74, 250781), (134, 138491), (197, 94202), (394, 47101), (703, 26398), (1273, 14578), (1406, 13199), (2479, 7486), (2546, 7289), (3743, 4958)]