21000260008

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28846511}}^1$

素因数の和:28846537

約数の個数: 32

約数和(自身を含む): 48462140160

約数和(自身を除く): 27461880152

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28846511, 57693022, 115386044, 201925577, 230772088, 375004643, 403851154, 750009286, 807702308, 1500018572, 1615404616, 2625032501, 3000037144, 5250065002, 10500130004, 21000260008]

約数ペア:

[(1, 21000260008), (2, 10500130004), (4, 5250065002), (7, 3000037144), (8, 2625032501), (13, 1615404616), (14, 1500018572), (26, 807702308), (28, 750009286), (52, 403851154), (56, 375004643), (91, 230772088), (104, 201925577), (182, 115386044), (364, 57693022), (728, 28846511)]