1981551

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 3225600

約数和(自身を除く): 1244049

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 143, 149, 341, 403, 429, 447, 1023, 1209, 1639, 1937, 4433, 4619, 4917, 5811, 13299, 13857, 21307, 50809, 60047, 63921, 152427, 180141, 660517, 1981551]

約数ペア:

[(1, 1981551), (3, 660517), (11, 180141), (13, 152427), (31, 63921), (33, 60047), (39, 50809), (93, 21307), (143, 13857), (149, 13299), (341, 5811), (403, 4917), (429, 4619), (447, 4433), (1023, 1937), (1209, 1639)]