21080861

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:404

約数の個数: 16

約数和(自身を含む): 23055360

約数和(自身を除く): 1974499

約数列:

[1, 19, 37, 157, 191, 703, 2983, 3629, 5809, 7067, 29987, 110371, 134273, 569753, 1109519, 21080861]

約数ペア:

[(1, 21080861), (19, 1109519), (37, 569753), (157, 134273), (191, 110371), (703, 29987), (2983, 7067), (3629, 5809)]