21512456

素因数分解:

$2^3\times 7^1\times {\mathrm{384151}}^1$

素因数の和:384164

約数の個数: 16

約数和(自身を含む): 46098240

約数和(自身を除く): 24585784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 384151, 768302, 1536604, 2689057, 3073208, 5378114, 10756228, 21512456]

約数ペア:

[(1, 21512456), (2, 10756228), (4, 5378114), (7, 3073208), (8, 2689057), (14, 1536604), (28, 768302), (56, 384151)]