209737215

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{25469}}^1$

素因数の和:25544

約数の個数: 32

約数和(自身を含む): 378993600

約数和(自身を除く): 169256385

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2745, 8235, 25469, 76407, 127345, 229221, 382035, 687663, 1146105, 1553609, 3438315, 4660827, 7768045, 13982481, 23304135, 41947443, 69912405, 209737215]

約数ペア:

[(1, 209737215), (3, 69912405), (5, 41947443), (9, 23304135), (15, 13982481), (27, 7768045), (45, 4660827), (61, 3438315), (135, 1553609), (183, 1146105), (305, 687663), (549, 382035), (915, 229221), (1647, 127345), (2745, 76407), (8235, 25469)]