391337406

素因数分解:

$2^1\times 3^9\times {\mathrm{9941}}^1$

素因数の和:9970

約数の個数: 40

約数和(自身を含む): 880582824

約数和(自身を除く): 489245418

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 729, 1458, 2187, 4374, 6561, 9941, 13122, 19683, 19882, 29823, 39366, 59646, 89469, 178938, 268407, 536814, 805221, 1610442, 2415663, 4831326, 7246989, 14493978, 21740967, 43481934, 65222901, 130445802, 195668703, 391337406]

約数ペア:

[(1, 391337406), (2, 195668703), (3, 130445802), (6, 65222901), (9, 43481934), (18, 21740967), (27, 14493978), (54, 7246989), (81, 4831326), (162, 2415663), (243, 1610442), (486, 805221), (729, 536814), (1458, 268407), (2187, 178938), (4374, 89469), (6561, 59646), (9941, 39366), (13122, 29823), (19683, 19882)]