26881617

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1997}}^1$

素因数の和:2648

約数の個数: 16

約数和(自身を含む): 41046912

約数和(自身を除く): 14165295

約数列:

[1, 3, 7, 21, 641, 1923, 1997, 4487, 5991, 13461, 13979, 41937, 1280077, 3840231, 8960539, 26881617]

約数ペア:

[(1, 26881617), (3, 8960539), (7, 3840231), (21, 1280077), (641, 41937), (1923, 13979), (1997, 13461), (4487, 5991)]