16209820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73681}}^1$

素因数の和:73701

約数の個数: 24

約数和(自身を含む): 37135728

約数和(自身を除く): 20925908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 73681, 147362, 294724, 368405, 736810, 810491, 1473620, 1620982, 3241964, 4052455, 8104910, 16209820]

約数ペア:

[(1, 16209820), (2, 8104910), (4, 4052455), (5, 3241964), (10, 1620982), (11, 1473620), (20, 810491), (22, 736810), (44, 368405), (55, 294724), (110, 147362), (220, 73681)]