21164585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{3923}}^1$

素因数の和:4024

約数の個数: 16

約数和(自身を含む): 27687744

約数和(自身を除く): 6523159

約数列:

[1, 5, 13, 65, 83, 415, 1079, 3923, 5395, 19615, 50999, 254995, 325609, 1628045, 4232917, 21164585]

約数ペア:

[(1, 21164585), (5, 4232917), (13, 1628045), (65, 325609), (83, 254995), (415, 50999), (1079, 19615), (3923, 5395)]