138208826973

素因数分解:

$3^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{6641143}}^1$

素因数の和:6642144

約数の個数: 16

約数和(自身を含む): 210816475136

約数和(自身を除く): 72607648163

約数列:

[1, 3, 7, 21, 991, 2973, 6937, 20811, 6641143, 19923429, 46488001, 139464003, 6581372713, 19744118139, 46069608991, 138208826973]

約数ペア:

[(1, 138208826973), (3, 46069608991), (7, 19744118139), (21, 6581372713), (991, 139464003), (2973, 46488001), (6937, 19923429), (20811, 6641143)]