21748048

素因数分解:

$2^4\times 7^1\times {\mathrm{194179}}^1$

素因数の和:194194

約数の個数: 20

約数和(自身を含む): 48156640

約数和(自身を除く): 26408592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194179, 388358, 776716, 1359253, 1553432, 2718506, 3106864, 5437012, 10874024, 21748048]

約数ペア:

[(1, 21748048), (2, 10874024), (4, 5437012), (7, 3106864), (8, 2718506), (14, 1553432), (16, 1359253), (28, 776716), (56, 388358), (112, 194179)]