20860084

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1499}}^1$

素因数の和:1588

約数の個数: 36

約数和(自身を含む): 43092000

約数和(自身を除く): 22231916

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1499, 1988, 2998, 3479, 5996, 6958, 10493, 13916, 20986, 41972, 73451, 106429, 146902, 212858, 293804, 425716, 745003, 1490006, 2980012, 5215021, 10430042, 20860084]

約数ペア:

[(1, 20860084), (2, 10430042), (4, 5215021), (7, 2980012), (14, 1490006), (28, 745003), (49, 425716), (71, 293804), (98, 212858), (142, 146902), (196, 106429), (284, 73451), (497, 41972), (994, 20986), (1499, 13916), (1988, 10493), (2998, 6958), (3479, 5996)]