21299716

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2027}}^1$

素因数の和:2139

約数の個数: 24

約数和(自身を含む): 38840256

約数和(自身を除く): 17540540

約数列:

[1, 2, 4, 37, 71, 74, 142, 148, 284, 2027, 2627, 4054, 5254, 8108, 10508, 74999, 143917, 149998, 287834, 299996, 575668, 5324929, 10649858, 21299716]

約数ペア:

[(1, 21299716), (2, 10649858), (4, 5324929), (37, 575668), (71, 299996), (74, 287834), (142, 149998), (148, 143917), (284, 74999), (2027, 10508), (2627, 8108), (4054, 5254)]