21777309

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{131}}^2$

素因数の和:318

約数の個数: 24

約数和(自身を含む): 33202560

約数和(自身を除く): 11425251

約数列:

[1, 3, 9, 27, 47, 131, 141, 393, 423, 1179, 1269, 3537, 6157, 17161, 18471, 51483, 55413, 154449, 166239, 463347, 806567, 2419701, 7259103, 21777309]

約数ペア:

[(1, 21777309), (3, 7259103), (9, 2419701), (27, 806567), (47, 463347), (131, 166239), (141, 154449), (393, 55413), (423, 51483), (1179, 18471), (1269, 17161), (3537, 6157)]