18803871

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 28108080

約数和(自身を除く): 9304209

約数列:

[1, 3, 9, 41, 123, 131, 369, 389, 393, 1167, 1179, 3501, 5371, 15949, 16113, 47847, 48339, 50959, 143541, 152877, 458631, 2089319, 6267957, 18803871]

約数ペア:

[(1, 18803871), (3, 6267957), (9, 2089319), (41, 458631), (123, 152877), (131, 143541), (369, 50959), (389, 48339), (393, 47847), (1167, 16113), (1179, 15949), (3501, 5371)]