19857488

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1657}}^1$

素因数の和:1779

約数の個数: 40

約数和(自身を含む): 44407872

約数和(自身を除く): 24550384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1657, 1712, 2996, 3314, 5992, 6628, 11599, 11984, 13256, 23198, 26512, 46396, 92792, 177299, 185584, 354598, 709196, 1241093, 1418392, 2482186, 2836784, 4964372, 9928744, 19857488]

約数ペア:

[(1, 19857488), (2, 9928744), (4, 4964372), (7, 2836784), (8, 2482186), (14, 1418392), (16, 1241093), (28, 709196), (56, 354598), (107, 185584), (112, 177299), (214, 92792), (428, 46396), (749, 26512), (856, 23198), (1498, 13256), (1657, 11984), (1712, 11599), (2996, 6628), (3314, 5992)]