19937036

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 42282240

約数和(自身を除く): 22345204

約数列:

[1, 2, 4, 7, 14, 28, 29, 43, 58, 86, 116, 172, 203, 301, 406, 571, 602, 812, 1142, 1204, 1247, 2284, 2494, 3997, 4988, 7994, 8729, 15988, 16559, 17458, 24553, 33118, 34916, 49106, 66236, 98212, 115913, 171871, 231826, 343742, 463652, 687484, 712037, 1424074, 2848148, 4984259, 9968518, 19937036]

約数ペア:

[(1, 19937036), (2, 9968518), (4, 4984259), (7, 2848148), (14, 1424074), (28, 712037), (29, 687484), (43, 463652), (58, 343742), (86, 231826), (116, 171871), (172, 115913), (203, 98212), (301, 66236), (406, 49106), (571, 34916), (602, 33118), (812, 24553), (1142, 17458), (1204, 16559), (1247, 15988), (2284, 8729), (2494, 7994), (3997, 4988)]