81777843

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7591}}^1$

素因数の和:7629

約数の個数: 40

約数和(自身を含む): 146981120

約数和(自身を除く): 65203277

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 3591, 7591, 10773, 22773, 53137, 68319, 144229, 159411, 204957, 432687, 478233, 614871, 1009603, 1298061, 1434699, 3028809, 3894183, 4304097, 9086427, 11682549, 27259281, 81777843]

約数ペア:

[(1, 81777843), (3, 27259281), (7, 11682549), (9, 9086427), (19, 4304097), (21, 3894183), (27, 3028809), (57, 1434699), (63, 1298061), (81, 1009603), (133, 614871), (171, 478233), (189, 432687), (399, 204957), (513, 159411), (567, 144229), (1197, 68319), (1539, 53137), (3591, 22773), (7591, 10773)]