18981053

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1249}}^1$

素因数の和:1436

約数の個数: 16

約数和(自身を含む): 23520000

約数和(自身を除く): 4538947

約数列:

[1, 7, 13, 91, 167, 1169, 1249, 2171, 8743, 15197, 16237, 113659, 208583, 1460081, 2711579, 18981053]

約数ペア:

[(1, 18981053), (7, 2711579), (13, 1460081), (91, 208583), (167, 113659), (1169, 16237), (1249, 15197), (2171, 8743)]