18690448

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1531}}^1$

素因数の和:1655

約数の個数: 40

約数和(自身を含む): 41792960

約数和(自身を除く): 23102512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1531, 1744, 3052, 3062, 6104, 6124, 10717, 12208, 12248, 21434, 24496, 42868, 85736, 166879, 171472, 333758, 667516, 1168153, 1335032, 2336306, 2670064, 4672612, 9345224, 18690448]

約数ペア:

[(1, 18690448), (2, 9345224), (4, 4672612), (7, 2670064), (8, 2336306), (14, 1335032), (16, 1168153), (28, 667516), (56, 333758), (109, 171472), (112, 166879), (218, 85736), (436, 42868), (763, 24496), (872, 21434), (1526, 12248), (1531, 12208), (1744, 10717), (3052, 6124), (3062, 6104)]