639418892

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1343317}}^1$

素因数の和:1343345

約数の個数: 24

約数和(自身を含む): 1354064544

約数和(自身を除く): 714645652

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 1343317, 2686634, 5373268, 9403219, 18806438, 22836389, 37612876, 45672778, 91345556, 159854723, 319709446, 639418892]

約数ペア:

[(1, 639418892), (2, 319709446), (4, 159854723), (7, 91345556), (14, 45672778), (17, 37612876), (28, 22836389), (34, 18806438), (68, 9403219), (119, 5373268), (238, 2686634), (476, 1343317)]