21669453

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2081}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 34103160

約数和(自身を除く): 12433707

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 2081, 3471, 6243, 10413, 18729, 27053, 81159, 185209, 243477, 555627, 1666881, 2407717, 7223151, 21669453]

約数ペア:

[(1, 21669453), (3, 7223151), (9, 2407717), (13, 1666881), (39, 555627), (89, 243477), (117, 185209), (267, 81159), (801, 27053), (1157, 18729), (2081, 10413), (3471, 6243)]