209938149

素因数分解:

$3^6\times {\mathrm{61}}^1\times {\mathrm{4721}}^1$

素因数の和:4800

約数の個数: 28

約数和(自身を含む): 319991052

約数和(自身を除く): 110052903

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 549, 729, 1647, 4721, 4941, 14163, 14823, 42489, 44469, 127467, 287981, 382401, 863943, 1147203, 2591829, 3441609, 7775487, 23326461, 69979383, 209938149]

約数ペア:

[(1, 209938149), (3, 69979383), (9, 23326461), (27, 7775487), (61, 3441609), (81, 2591829), (183, 1147203), (243, 863943), (549, 382401), (729, 287981), (1647, 127467), (4721, 44469), (4941, 42489), (14163, 14823)]