19493104

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1057

約数の個数: 40

約数和(自身を含む): 40019760

約数和(自身を除く): 20526656

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 977, 1247, 1954, 2494, 3908, 4988, 7816, 9976, 15632, 19952, 28333, 42011, 56666, 84022, 113332, 168044, 226664, 336088, 453328, 672176, 1218319, 2436638, 4873276, 9746552, 19493104]

約数ペア:

[(1, 19493104), (2, 9746552), (4, 4873276), (8, 2436638), (16, 1218319), (29, 672176), (43, 453328), (58, 336088), (86, 226664), (116, 168044), (172, 113332), (232, 84022), (344, 56666), (464, 42011), (688, 28333), (977, 19952), (1247, 15632), (1954, 9976), (2494, 7816), (3908, 4988)]