21853143

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10987}}^1$

素因数の和:11023

約数の個数: 24

約数和(自身を含む): 35996688

約数和(自身を除く): 14143545

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10987, 32961, 98883, 142831, 186779, 428493, 560337, 1285479, 1681011, 2428127, 7284381, 21853143]

約数ペア:

[(1, 21853143), (3, 7284381), (9, 2428127), (13, 1681011), (17, 1285479), (39, 560337), (51, 428493), (117, 186779), (153, 142831), (221, 98883), (663, 32961), (1989, 10987)]