21486003

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1979}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 15009357

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 1979, 3619, 5937, 10857, 13853, 21769, 41559, 65307, 93013, 152383, 279039, 457149, 651091, 1023143, 1953273, 3069429, 7162001, 21486003]

約数ペア:

[(1, 21486003), (3, 7162001), (7, 3069429), (11, 1953273), (21, 1023143), (33, 651091), (47, 457149), (77, 279039), (141, 152383), (231, 93013), (329, 65307), (517, 41559), (987, 21769), (1551, 13853), (1979, 10857), (3619, 5937)]