81901172

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{63391}}^1$

素因数の和:63431

約数の個数: 24

約数和(自身を含む): 159747840

約数和(自身を除く): 77846668

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 63391, 126782, 253564, 1077647, 1204429, 2155294, 2408858, 4310588, 4817716, 20475293, 40950586, 81901172]

約数ペア:

[(1, 81901172), (2, 40950586), (4, 20475293), (17, 4817716), (19, 4310588), (34, 2408858), (38, 2155294), (68, 1204429), (76, 1077647), (323, 253564), (646, 126782), (1292, 63391)]