21288949

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2753}}^1$

素因数の和:2820

約数の個数: 16

約数和(自身を含む): 25116480

約数和(自身を除く): 3827531

約数列:

[1, 11, 19, 37, 209, 407, 703, 2753, 7733, 30283, 52307, 101861, 575377, 1120471, 1935359, 21288949]

約数ペア:

[(1, 21288949), (11, 1935359), (19, 1120471), (37, 575377), (209, 101861), (407, 52307), (703, 30283), (2753, 7733)]