18881212

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{35491}}^1$

素因数の和:35521

約数の個数: 24

約数和(自身を含む): 39751040

約数和(自身を除く): 20869828

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 35491, 70982, 141964, 248437, 496874, 674329, 993748, 1348658, 2697316, 4720303, 9440606, 18881212]

約数ペア:

[(1, 18881212), (2, 9440606), (4, 4720303), (7, 2697316), (14, 1348658), (19, 993748), (28, 674329), (38, 496874), (76, 248437), (133, 141964), (266, 70982), (532, 35491)]