19721744

素因数分解:

$2^4\times 7^1\times {\mathrm{176087}}^1$

素因数の和:176102

約数の個数: 20

約数和(自身を含む): 43669824

約数和(自身を除く): 23948080

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 176087, 352174, 704348, 1232609, 1408696, 2465218, 2817392, 4930436, 9860872, 19721744]

約数ペア:

[(1, 19721744), (2, 9860872), (4, 4930436), (7, 2817392), (8, 2465218), (14, 1408696), (16, 1232609), (28, 704348), (56, 352174), (112, 176087)]