21921896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144223}}^1$

素因数の和:144248

約数の個数: 16

約数和(自身を含む): 43267200

約数和(自身を除く): 21345304

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144223, 288446, 576892, 1153784, 2740237, 5480474, 10960948, 21921896]

約数ペア:

[(1, 21921896), (2, 10960948), (4, 5480474), (8, 2740237), (19, 1153784), (38, 576892), (76, 288446), (152, 144223)]