19204554

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 43228800

約数和(自身を除く): 24024246

約数列:

[1, 2, 3, 6, 19, 29, 37, 38, 57, 58, 74, 87, 111, 114, 157, 174, 222, 314, 471, 551, 703, 942, 1073, 1102, 1406, 1653, 2109, 2146, 2983, 3219, 3306, 4218, 4553, 5809, 5966, 6438, 8949, 9106, 11618, 13659, 17427, 17898, 20387, 27318, 34854, 40774, 61161, 86507, 110371, 122322, 168461, 173014, 220742, 259521, 331113, 336922, 505383, 519042, 662226, 1010766, 3200759, 6401518, 9602277, 19204554]

約数ペア:

[(1, 19204554), (2, 9602277), (3, 6401518), (6, 3200759), (19, 1010766), (29, 662226), (37, 519042), (38, 505383), (57, 336922), (58, 331113), (74, 259521), (87, 220742), (111, 173014), (114, 168461), (157, 122322), (174, 110371), (222, 86507), (314, 61161), (471, 40774), (551, 34854), (703, 27318), (942, 20387), (1073, 17898), (1102, 17427), (1406, 13659), (1653, 11618), (2109, 9106), (2146, 8949), (2983, 6438), (3219, 5966), (3306, 5809), (4218, 4553)]