20807912

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{70297}}^1$

素因数の和:70340

約数の個数: 16

約数和(自身を含む): 40069860

約数和(自身を除く): 19261948

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 70297, 140594, 281188, 562376, 2600989, 5201978, 10403956, 20807912]

約数ペア:

[(1, 20807912), (2, 10403956), (4, 5201978), (8, 2600989), (37, 562376), (74, 281188), (148, 140594), (296, 70297)]