20087235

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1483}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 40744704

約数和(自身を除く): 20657469

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 215, 301, 315, 387, 645, 903, 1483, 1505, 1935, 2709, 4449, 4515, 7415, 10381, 13347, 13545, 22245, 31143, 51905, 63769, 66735, 93429, 155715, 191307, 318845, 446383, 467145, 573921, 956535, 1339149, 2231915, 2869605, 4017447, 6695745, 20087235]

約数ペア:

[(1, 20087235), (3, 6695745), (5, 4017447), (7, 2869605), (9, 2231915), (15, 1339149), (21, 956535), (35, 573921), (43, 467145), (45, 446383), (63, 318845), (105, 191307), (129, 155715), (215, 93429), (301, 66735), (315, 63769), (387, 51905), (645, 31143), (903, 22245), (1483, 13545), (1505, 13347), (1935, 10381), (2709, 7415), (4449, 4515)]