8178639

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 13789440

約数和(自身を除く): 5610801

約数列:

[1, 3, 7, 21, 23, 41, 49, 59, 69, 123, 147, 161, 177, 287, 413, 483, 861, 943, 1127, 1239, 1357, 2009, 2419, 2829, 2891, 3381, 4071, 6027, 6601, 7257, 8673, 9499, 16933, 19803, 28497, 46207, 50799, 55637, 66493, 118531, 138621, 166911, 199479, 355593, 389459, 1168377, 2726213, 8178639]

約数ペア:

[(1, 8178639), (3, 2726213), (7, 1168377), (21, 389459), (23, 355593), (41, 199479), (49, 166911), (59, 138621), (69, 118531), (123, 66493), (147, 55637), (161, 50799), (177, 46207), (287, 28497), (413, 19803), (483, 16933), (861, 9499), (943, 8673), (1127, 7257), (1239, 6601), (1357, 6027), (2009, 4071), (2419, 3381), (2829, 2891)]