20402253

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{17573}}^1$

素因数の和:17625

約数の個数: 16

約数和(自身を含む): 30930240

約数和(自身を除く): 10527987

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 17573, 52719, 158157, 474471, 755639, 2266917, 6800751, 20402253]

約数ペア:

[(1, 20402253), (3, 6800751), (9, 2266917), (27, 755639), (43, 474471), (129, 158157), (387, 52719), (1161, 17573)]