20683917

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{1669}}^1$

素因数の和:1704

約数の個数: 28

約数和(自身を含む): 32855580

約数和(自身を除く): 12171663

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 729, 1377, 1669, 4131, 5007, 12393, 15021, 28373, 45063, 85119, 135189, 255357, 405567, 766071, 1216701, 2298213, 6894639, 20683917]

約数ペア:

[(1, 20683917), (3, 6894639), (9, 2298213), (17, 1216701), (27, 766071), (51, 405567), (81, 255357), (153, 135189), (243, 85119), (459, 45063), (729, 28373), (1377, 15021), (1669, 12393), (4131, 5007)]