20912514

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{857}}^1$

素因数の和:959

約数の個数: 48

約数和(自身を含む): 49297248

約数和(自身を除く): 28384734

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 83, 98, 147, 166, 249, 294, 498, 581, 857, 1162, 1714, 1743, 2571, 3486, 4067, 5142, 5999, 8134, 11998, 12201, 17997, 24402, 35994, 41993, 71131, 83986, 125979, 142262, 213393, 251958, 426786, 497917, 995834, 1493751, 2987502, 3485419, 6970838, 10456257, 20912514]

約数ペア:

[(1, 20912514), (2, 10456257), (3, 6970838), (6, 3485419), (7, 2987502), (14, 1493751), (21, 995834), (42, 497917), (49, 426786), (83, 251958), (98, 213393), (147, 142262), (166, 125979), (249, 83986), (294, 71131), (498, 41993), (581, 35994), (857, 24402), (1162, 17997), (1714, 12201), (1743, 11998), (2571, 8134), (3486, 5999), (4067, 5142)]