18560087

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{541}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 23804640

約数和(自身を除く): 5244553

約数列:

[1, 7, 13, 29, 91, 169, 203, 377, 541, 1183, 2639, 3787, 4901, 7033, 15689, 34307, 49231, 91429, 109823, 203957, 640003, 1427699, 2651441, 18560087]

約数ペア:

[(1, 18560087), (7, 2651441), (13, 1427699), (29, 640003), (91, 203957), (169, 109823), (203, 91429), (377, 49231), (541, 34307), (1183, 15689), (2639, 7033), (3787, 4901)]