21100156

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68507}}^1$

素因数の和:68529

約数の個数: 24

約数和(自身を含む): 46037376

約数和(自身を除く): 24937220

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68507, 137014, 274028, 479549, 753577, 959098, 1507154, 1918196, 3014308, 5275039, 10550078, 21100156]

約数ペア:

[(1, 21100156), (2, 10550078), (4, 5275039), (7, 3014308), (11, 1918196), (14, 1507154), (22, 959098), (28, 753577), (44, 479549), (77, 274028), (154, 137014), (308, 68507)]