20723805

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20023}}^1$

素因数の和:20057

約数の個数: 24

約数和(自身を含む): 37484928

約数和(自身を除く): 16761123

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20023, 60069, 100115, 180207, 300345, 460529, 901035, 1381587, 2302645, 4144761, 6907935, 20723805]

約数ペア:

[(1, 20723805), (3, 6907935), (5, 4144761), (9, 2302645), (15, 1381587), (23, 901035), (45, 460529), (69, 300345), (115, 180207), (207, 100115), (345, 60069), (1035, 20023)]