261644852

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{217313}}^1$

素因数の和:217367

約数の個数: 24

約数和(自身を含む): 535461696

約数和(自身を除く): 273816844

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 217313, 434626, 869252, 1521191, 3042382, 6084764, 9344459, 18688918, 37377836, 65411213, 130822426, 261644852]

約数ペア:

[(1, 261644852), (2, 130822426), (4, 65411213), (7, 37377836), (14, 18688918), (28, 9344459), (43, 6084764), (86, 3042382), (172, 1521191), (301, 869252), (602, 434626), (1204, 217313)]