20784433929

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1936859}}^1$

素因数の和:1936949

約数の個数: 24

約数和(自身を含む): 32678701920

約数和(自身を除く): 11894267991

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 3577, 10731, 1936859, 5810577, 13558013, 40674039, 94906091, 141390707, 284718273, 424172121, 989734949, 2969204847, 6928144643, 20784433929]

約数ペア:

[(1, 20784433929), (3, 6928144643), (7, 2969204847), (21, 989734949), (49, 424172121), (73, 284718273), (147, 141390707), (219, 94906091), (511, 40674039), (1533, 13558013), (3577, 5810577), (10731, 1936859)]