18791451

素因数分解:

$3^2\times 7^2\times {\mathrm{42611}}^1$

素因数の和:42631

約数の個数: 18

約数和(自身を含む): 31575492

約数和(自身を除く): 12784041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 42611, 127833, 298277, 383499, 894831, 2087939, 2684493, 6263817, 18791451]

約数ペア:

[(1, 18791451), (3, 6263817), (7, 2684493), (9, 2087939), (21, 894831), (49, 383499), (63, 298277), (147, 127833), (441, 42611)]