21911807

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:566

約数の個数: 16

約数和(自身を含む): 24076800

約数和(自身を除く): 2164993

約数列:

[1, 19, 37, 71, 439, 703, 1349, 2627, 8341, 16243, 31169, 49913, 308617, 592211, 1153253, 21911807]

約数ペア:

[(1, 21911807), (19, 1153253), (37, 592211), (71, 308617), (439, 49913), (703, 31169), (1349, 16243), (2627, 8341)]