21795813

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{599}}^1$

素因数の和:929

約数の個数: 24

約数和(自身を含む): 34070400

約数和(自身を除く): 12274587

約数列:

[1, 3, 9, 13, 39, 117, 311, 599, 933, 1797, 2799, 4043, 5391, 7787, 12129, 23361, 36387, 70083, 186289, 558867, 1676601, 2421757, 7265271, 21795813]

約数ペア:

[(1, 21795813), (3, 7265271), (9, 2421757), (13, 1676601), (39, 558867), (117, 186289), (311, 70083), (599, 36387), (933, 23361), (1797, 12129), (2799, 7787), (4043, 5391)]