19993845

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{12941}}^1$

素因数の和:13052

約数の個数: 16

約数和(自身を含む): 32303232

約数和(自身を除く): 12309387

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 12941, 38823, 64705, 194115, 1332923, 3998769, 6664615, 19993845]

約数ペア:

[(1, 19993845), (3, 6664615), (5, 3998769), (15, 1332923), (103, 194115), (309, 64705), (515, 38823), (1545, 12941)]