21124168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203117}}^1$

素因数の和:203136

約数の個数: 16

約数和(自身を含む): 42654780

約数和(自身を除く): 21530612

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203117, 406234, 812468, 1624936, 2640521, 5281042, 10562084, 21124168]

約数ペア:

[(1, 21124168), (2, 10562084), (4, 5281042), (8, 2640521), (13, 1624936), (26, 812468), (52, 406234), (104, 203117)]