20781178

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{23039}}^1$

素因数の和:23093

約数の個数: 16

約数和(自身を含む): 34836480

約数和(自身を除く): 14055302

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 23039, 46078, 253429, 506858, 944599, 1889198, 10390589, 20781178]

約数ペア:

[(1, 20781178), (2, 10390589), (11, 1889198), (22, 944599), (41, 506858), (82, 253429), (451, 46078), (902, 23039)]