20828235

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47881}}^1$

素因数の和:47918

約数の個数: 16

約数和(自身を含む): 34475040

約数和(自身を除く): 13646805

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 47881, 143643, 239405, 718215, 1388549, 4165647, 6942745, 20828235]

約数ペア:

[(1, 20828235), (3, 6942745), (5, 4165647), (15, 1388549), (29, 718215), (87, 239405), (145, 143643), (435, 47881)]