19781554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{6733}}^1$

素因数の和:6861

約数の個数: 16

約数和(自身を含む): 32242392

約数和(自身を除く): 12460838

約数列:

[1, 2, 13, 26, 113, 226, 1469, 2938, 6733, 13466, 87529, 175058, 760829, 1521658, 9890777, 19781554]

約数ペア:

[(1, 19781554), (2, 9890777), (13, 1521658), (26, 760829), (113, 175058), (226, 87529), (1469, 13466), (2938, 6733)]