20984151

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{647}}^1$

素因数の和:1238

約数の個数: 16

約数和(自身を含む): 29548800

約数和(自身を除く): 8564649

約数列:

[1, 3, 19, 57, 569, 647, 1707, 1941, 10811, 12293, 32433, 36879, 368143, 1104429, 6994717, 20984151]

約数ペア:

[(1, 20984151), (3, 6994717), (19, 1104429), (57, 368143), (569, 36879), (647, 32433), (1707, 12293), (1941, 10811)]