21589264

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{15161}}^1$

素因数の和:15258

約数の個数: 20

約数和(自身を含む): 42301980

約数和(自身を除く): 20712716

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 15161, 30322, 60644, 121288, 242576, 1349329, 2698658, 5397316, 10794632, 21589264]

約数ペア:

[(1, 21589264), (2, 10794632), (4, 5397316), (8, 2698658), (16, 1349329), (89, 242576), (178, 121288), (356, 60644), (712, 30322), (1424, 15161)]