20213619

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:367

約数の個数: 24

約数和(自身を含む): 28879872

約数和(自身を除く): 8666253

約数列:

[1, 3, 23, 47, 69, 141, 271, 529, 813, 1081, 1587, 3243, 6233, 12737, 18699, 24863, 38211, 74589, 143359, 292951, 430077, 878853, 6737873, 20213619]

約数ペア:

[(1, 20213619), (3, 6737873), (23, 878853), (47, 430077), (69, 292951), (141, 143359), (271, 74589), (529, 38211), (813, 24863), (1081, 18699), (1587, 12737), (3243, 6233)]