128241421

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^2$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 169833024

約数和(自身を除く): 41591603

約数列:

[1, 7, 11, 17, 77, 119, 187, 313, 1309, 2191, 3443, 5321, 24101, 37247, 58531, 97969, 409717, 685783, 1077659, 1665473, 7543613, 11658311, 18320203, 128241421]

約数ペア:

[(1, 128241421), (7, 18320203), (11, 11658311), (17, 7543613), (77, 1665473), (119, 1077659), (187, 685783), (313, 409717), (1309, 97969), (2191, 58531), (3443, 37247), (5321, 24101)]