138989816

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{19543}}^1$

素因数の和:19683

約数の個数: 32

約数和(自身を含む): 300195840

約数和(自身を除く): 161206024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 254, 508, 889, 1016, 1778, 3556, 7112, 19543, 39086, 78172, 136801, 156344, 273602, 547204, 1094408, 2481961, 4963922, 9927844, 17373727, 19855688, 34747454, 69494908, 138989816]

約数ペア:

[(1, 138989816), (2, 69494908), (4, 34747454), (7, 19855688), (8, 17373727), (14, 9927844), (28, 4963922), (56, 2481961), (127, 1094408), (254, 547204), (508, 273602), (889, 156344), (1016, 136801), (1778, 78172), (3556, 39086), (7112, 19543)]