20869961

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4241}}^1$

素因数の和:4304

約数の個数: 16

約数和(自身を含む): 25791360

約数和(自身を除く): 4921399

約数列:

[1, 7, 19, 37, 133, 259, 703, 4241, 4921, 29687, 80579, 156917, 564053, 1098419, 2981423, 20869961]

約数ペア:

[(1, 20869961), (7, 2981423), (19, 1098419), (37, 564053), (133, 156917), (259, 80579), (703, 29687), (4241, 4921)]