18647151

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27617280

約数和(自身を除く): 8970129

約数列:

[1, 3, 19, 31, 57, 61, 93, 173, 183, 519, 589, 1159, 1767, 1891, 3287, 3477, 5363, 5673, 9861, 10553, 16089, 31659, 35929, 101897, 107787, 200507, 305691, 327143, 601521, 981429, 6215717, 18647151]

約数ペア:

[(1, 18647151), (3, 6215717), (19, 981429), (31, 601521), (57, 327143), (61, 305691), (93, 200507), (173, 107787), (183, 101897), (519, 35929), (589, 31659), (1159, 16089), (1767, 10553), (1891, 9861), (3287, 5673), (3477, 5363)]