128352021

素因数分解:

$3^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{3623}}^1$

素因数の和:3881

約数の個数: 24

約数和(自身を含む): 199957824

約数和(自身を除く): 71605803

約数列:

[1, 3, 7, 21, 49, 147, 241, 723, 1687, 3623, 5061, 10869, 11809, 25361, 35427, 76083, 177527, 532581, 873143, 2619429, 6112001, 18336003, 42784007, 128352021]

約数ペア:

[(1, 128352021), (3, 42784007), (7, 18336003), (21, 6112001), (49, 2619429), (147, 873143), (241, 532581), (723, 177527), (1687, 76083), (3623, 35427), (5061, 25361), (10869, 11809)]