18657204944

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1198433}}^1$

素因数の和:1198587

約数の個数: 40

約数和(自身を含む): 41609628480

約数和(自身を除く): 22952423536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1946, 2224, 3892, 7784, 15568, 1198433, 2396866, 4793732, 8389031, 9587464, 16778062, 19174928, 33556124, 67112248, 134224496, 166582187, 333164374, 666328748, 1166075309, 1332657496, 2332150618, 2665314992, 4664301236, 9328602472, 18657204944]

約数ペア:

[(1, 18657204944), (2, 9328602472), (4, 4664301236), (7, 2665314992), (8, 2332150618), (14, 1332657496), (16, 1166075309), (28, 666328748), (56, 333164374), (112, 166582187), (139, 134224496), (278, 67112248), (556, 33556124), (973, 19174928), (1112, 16778062), (1946, 9587464), (2224, 8389031), (3892, 4793732), (7784, 2396866), (15568, 1198433)]